AutoSleep: Watch Sleep Tracker icon
AutoSnore: Snoring Recorder icon
Eclipse Yourself: Health Watch icon
+2

Tantsissa

For privacy-conscious Apple Watch owners and health enthusiasts who prefer data ownership and automated tracking over subscription-based services.

5apps4.3(94.5K) Multi-theme

Snapshot

Who is Tantsissa?

Providing Apple Watch users with automated, privacy-centric health and sleep tracking tools through a transparent one-time purchase model.

Target audience

Privacy-conscious Apple Watch ownersHealth enthusiasts who prefer data ownershipAutomated tracking over subscription-based services

Top rival

Bodymatter

Other rivals

Portfolio

Free 3
5
apps
Health & Fitness3
Food & Drink1
Medical1

Last updated

AutoSleep: Watch Sleep Tracker

v6.16

10mo ago

Steady

Publisher DNA

What defines Tantsissa?

Publisher DNA

Primary focus

Health & Fitness analytics for Apple Watch

Scale

indie

Target audience

Privacy-conscious Apple Watch owners and health enthusiasts who prefer data ownership and automated tracking over subscription-based services.

Signature Patterns

  • •Strict one-time purchase monetization model across premium titles.
  • •Privacy-first architecture emphasizing local data storage and no user tracking.
  • •Heavy reliance on automated, 'set-and-forget' Apple Watch sensor integration.
  • •Interconnected ecosystem where apps like AutoSnore and HeartWatch complement the flagship sleep tracker.
Steady

Portfolio momentum

Maintained a consistent update cadence with 3 releases across the portfolio in the last 6 months, keeping 80% of the catalog active.

Last release 65d agoActive apps 4Abandoned 1

Portfolio

What does Tantsissa ship?

Apps

5 apps analysed

One-time purchase model

  • Detailed sleep cycle analysis provides users with actionable insights into their nightly rest quality
  • Frequent synchronization errors and data loss post-waking force users to manually re-enter sleep sessions

On-device processing ensures data privacy

  • The one-time purchase model provides a welcome alternative to the subscription-heavy landscape of sleep tracking apps
  • Manual start and stop requirements create significant friction and lead to missed recording sessions for users

iCloud-based sharing ensures user data privacy

  • Integration with specialized health tracking apps provides a comprehensive view of daily recovery and readiness
  • Subscription-based monetization model frustrates users who prefer one-time purchase options for health tracking tools
HeartWatch: Heart Rate Monitor icon
HeartWatch: Heart Rate Monitor

Easy-to-use Accurate Heart Rate Monitor

4.5(31.8K)

Deep Apple Health integration creates switching costs

  • The absence of intrusive advertisements allows users to monitor heart rate metrics without constant interruptions
  • Inconsistent heart rate readings and failure to detect pulses frustrate users during measurement attempts

Distributed across 12 markets, strongest in Europe.

Based on 1 of 5 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (3)

  • Brazil1 / 1
  • Mexico1 / 1
  • United States1 / 1

Europe (7)

  • France1 / 1
  • Germany1 / 1
  • Italy1 / 1
  • Netherlands1 / 1
  • Portugal1 / 1
›+2 more europe markets
  • Spain1 / 1
  • Sweden1 / 1

Asia-Pacific (2)

  • Japan1 / 1
  • South Korea1 / 1

Core markets (1/1 apps)

BrazilFranceGermanyItalyJapanMexicoNetherlandsPortugalSouth KoreaSpainSwedenUnited States

User Sentiment

How do users feel about their apps?

Unlock the app dragging this portfolio down.

Access the full report for free

Rivals

Who does Tantsissa compete with?

The rivals identified

Nemeses(2)

One Hundred Bad Ideas

known forStressWatch: AI Stress Monitor

1 app4.7Health & Fitness

Both apps target health-conscious Apple Watch users by processing biometric data to provide actionable wellness insights. They compete for the same user base seeking automated health tracking without manual input.

Oura Health Oy

known forOura

1 app4.9Health & Fitness

Oura dominates the recovery and readiness niche with a massive, hardware-integrated ecosystem that directly mirrors Eclipse's core value proposition.

Contenders(20)

Bodymatter

known forSleepWatch - Top Sleep Tracker

2 apps4.7Health & Fitness

Both apps target Apple Watch users for automated sleep tracking, creating a direct conflict between AutoSleep's one-time purchase model and SleepWatch's subscription-gated coaching features.

ActiveAce

known forStress Monitor for Watch

1 app4.5Health & Fitness

Both apps target Apple Watch users for cardiovascular health monitoring, specifically HRV and heart rate data, creating a direct overlap in the health-tracking segment.

AIBY

known forInPulse - Heart Rate Monitor

1 app4.6Health & Fitness

Both apps compete for health-conscious users by offering heart rate monitoring, but they diverge on hardware requirements and monetization: HeartWatch mandates Apple Watch ownership for data, while InPulse utilizes camera-based measurement for mobile-only users.

BetterSleep Health

known forBetterSleep: Sleep tracker

1 app4.3Health & Fitness

BetterSleep competes for the same sleep-tracking audience by offering a freemium model that combines analytics with audio-based sleep aids, contrasting with the purely analytical, one-time purchase model of AutoSleep.

C2

known forNightWell:Smart Sleep Tracker

1 app4.2Health & Fitness

NightWell competes for the same sleep-tracking audience by offering free access to snoring monitoring and smart alarms, features currently missing from the AutoSleep feature set.

Cardiio

known forCardiio: Heart Rate Monitor

1 app4.7Health & Fitness

Both apps target heart rate monitoring, but Cardiio captures the top of the funnel with a free, camera-based measurement tool that HeartWatch lacks.

Enerjoy Pte

known forShutEye®: Sleep Tracker, Sound

1 app4.8Health & Fitness

Both apps compete for Apple Watch users seeking automated sleep analytics and health integration within the same category.

Faliane

known forHeartica: Heart Rate Monitor

1 app4.4Health & Fitness

Heartica competes by offering a free, camera-based measurement entry point that captures health-conscious users who avoid the $8.99 upfront cost of HeartWatch.

Fasting APP

known forSleep Monitor: Sleep Tracker

1 app4.6Health & Fitness

Both apps target health-conscious users seeking sleep analytics, but they diverge on hardware dependency: AutoSleep requires an Apple Watch, while Sleep Monitor uses phone-based sensors.

Google

known forFitbit: Health & Fitness

2 apps4.1Health & Fitness

A massive, multi-platform competitor that covers the entire health spectrum including activity, sleep, and readiness.

HEARTIFY HEALTH

known forHeartify: Heart Health Monitor

1 app4.7Health & Fitness

Both apps target cardiovascular health tracking, but Heartify captures the top of the funnel via free, camera-based pulse detection, whereas HeartWatch requires an Apple Watch and a one-time purchase.

Helix Apps

known forHealth Hive: Compare Metrics

2 apps4.7Health & Fitness

Provides demographic context for health metrics for users who want to compare their fitness data against real-world cohorts.

Leap Fitness

known forSleep Tracker & Recorder: Yawn

1 app4.9Health & Fitness

Both apps compete for the same sleep-tracking audience, but Yawn's free pricing model and higher volume of user ratings create a direct acquisition threat for price-sensitive users.

Leap Health

known forSleep Tracker: Recorder, Sound

1 app4.8Health & Fitness

Both apps compete for the same Apple Health-integrated sleep tracking audience, with AutoSleep focusing on automated monitoring and Sleep Tracker: Recorder, Sound offering a broader suite of relaxation content and audio recording.

Neybox Digital

known forPillow: Sleep Tracker

1 app4.4Health & Fitness

Both applications target Apple Watch users seeking automated sleep tracking and health analytics, competing directly for the same health-conscious demographic.

Rise Science

known forRISE: Sleep Tracker

1 app4.7Health & Fitness

RISE competes for the same health-conscious Apple Watch user base by shifting the focus from raw sleep cycle data to energy management and sleep debt metrics. The two apps overlap in their core objective of improving nightly rest through automated tracking.

Sleep Cycle AB

known forSleep Cycle - Tracker & Sounds

1 app4.7Health & Fitness

Both apps compete for the same sleep-tracking intent, but Sleep Cycle captures users without Apple Watch hardware via sound-based monitoring, while AutoSleep relies on watch-based sensor data.

Smoky Cat Software

known forHeart Graph

1 app4.5Health & Fitness

Both apps target Apple Watch users interested in cardiovascular health and heart rate trend analysis. Heart Graph competes by offering a free, exercise-focused alternative to the paid, privacy-centric model of HeartWatch.

Welltory

known forWelltory: Health, Heart Rate

1 app4.7Health & Fitness

Both apps target health-conscious users managing stress and cardiovascular metrics, competing directly for the same audience through heart rate and HRV monitoring capabilities.

Zane

known forHeart Rate Monitor - Pulse BPM

1 app4.6Health & Fitness

Both apps target users monitoring cardiovascular health, but Heart Rate Monitor - Pulse BPM captures the entry-level market via free, camera-based pulse detection, while HeartWatch focuses on Apple Watch integration.

Same space(35)

Flask LLP

known forZones for Training

1 app4.8Health & Fitness

Zones for Training targets the fitness-tracking segment of the user base, focusing on heart rate intensity rather than sleep quality.

Future Artifact Labs

known forPeakWatch: AI Health Coach

1 app4.7Health & Fitness

PeakWatch offers an AI-driven coaching layer that provides context to raw health data, appealing to users who want actionable insights beyond simple sleep duration.

Gentler Stories

known forGentler Streak Workout Tracker

1 app4.7Health & Fitness

Gentler Streak offers adaptive fitness guidance based on physical readiness, serving users who want a balanced approach to activity and recovery.

199 Developments Private

known forECG heart analyze - watch

1 app4.7Health & Fitness

Offers heart rhythm interpretation for users who want to monitor stress and energy levels via Apple Watch data.

aadhk

known forBlood Pressure Tracker

1 app4.6Medical

It occupies the medical logging category by providing manual entry tools for users managing chronic health conditions.

AK Apptuitive

known forRunning Walking Tracker Goals

1 app4.8Health & Fitness

Acts as a workout-specific companion for users needing voice-controlled interval training while HeartWatch handles broader health trends.

Aleksei Duriagin

known forSleep Apnea Detector - Somnio+

1 app3.8Health & Fitness

Sleep Apnea Detector - Somnio+ targets users specifically concerned with sleep apnea symptoms, providing a focused recording tool for breathing pauses.

Apirox, s.r.o.

known forPrime Sleep Recorder Pro

2 apps4.7Medical

It targets the same sleep monitoring audience but utilizes AI-driven audio analysis to identify snore events.

Betoli

known forTraining Today

1 app4.6Health & Fitness

Provides a readiness score for athletes who need to manage training intensity based on daily recovery metrics.

Cross Forward Consulting

known forPedometer++

1 app4.8Health & Fitness

Functions as a glanceable activity dashboard for users who prefer native widget support over HeartWatch's deeper cardiovascular analysis.

Firehawk

known forBody Temperature・Fever Tracker

1 app2.4Medical

It functions as a digital health journal for tracking symptoms, overlapping with the medical utility category.

Fitbod

known forFitbod: Gym & Fitness Planner

1 app4.8Health & Fitness

Adjacent sub-genre competitor focusing on the 'activity' pillar of health with high-intensity workout planning.

Floating Island Technology Co.

known forGrow: Health & Fitness

1 app4.7Health & Fitness

Grow acts as a comprehensive health dashboard for users who want to track multiple metrics like hydration and sunlight alongside sleep.

Healive

known forSleep Tracker, Recorder

1 app4.5Health & Fitness

Sleep Tracker, Recorder offers ambient soundscapes and meditation tools to help users fall asleep, complementing the tracking focus of AutoSleep.

Heartworks Pty

known forECG+ | Your Watch ECG Reader

1 app4.4Health & Fitness

Acts as a specialized diagnostic-adjacent tool for users who need to analyze specific ECG and HRV data points.

Ipnos Software

known forBetterSleep: Relax and Sleep

1 app4.7Health & Fitness

BetterSleep targets the relaxation and soundscape niche, providing an alternative for users who prioritize auditory sleep aids over pure tracking metrics.

Jatisari Inovasi Studio

known forCycle Tracking

1 app2.9Health & Fitness

Cycle Tracking serves as a native health-tracking tool for menstrual cycles, providing a different health data layer within the Apple ecosystem.

Jonathan Toussaint

known forNighty: Sleep Cycle Calculator

1 app5.0Health & Fitness

Nighty provides a simple, non-tracking alternative for users who want to calculate sleep cycles without the complexity of app-based monitoring.

Kai Oelfke

known forSleep Cycle Bedtime Calculator

1 app4.0Health & Fitness

Sleep Cycle Bedtime Calculator provides a manual scheduling tool for users who prefer cycle-based planning over automated tracking.

Mattress Firm

known forSleep.com: Sleep Cycle Tracker

1 app4.8Health & Fitness

Sleep.com uses sonar technology to track sleep without wearables, serving users who do not want to wear a watch to bed.

Menelik Tucker

known forSnore Timeline: Sleep Tracker

1 app4.9Health & Fitness

Snore Timeline provides a privacy-focused, local-only alternative for users who want to track snoring and sleep stages without cloud dependencies.

Mosaic S.r.l.

known forSleepzy - Sleep Cycle Tracker

1 app4.3Health & Fitness

Sleepzy functions as a smart alarm and sleep cycle tracker, competing for the same morning-wake-up utility as AutoSleep.

MotiFIT Fitness

known forFITIV Pulse - Workout Tracker

1 app4.6Health & Fitness

Serves as a multi-device performance tracker for users who need compatibility with external heart rate monitors and sensors.

Nikolai Fabrika

known forSleepcraft: Sleep Tracker

1 app5.0Health & Fitness

Sleepcraft offers a clinical-style breakdown of sleep stages on a 12-hour clock, appealing to users who want detailed data analysis.

Personify Health

known forPersonify Health

1 app4.8Health & Fitness

Operates in the broader health monitoring space with a focus on holistic wellness and enterprise-grade tracking.

Reviva Softworks

known forSnoreLab : Record Your Snoring

1 app4.7Health & Fitness

SnoreLab focuses on snoring analysis rather than general sleep tracking, serving users who need clinical-style data for medical discussions.

Stephane Lizeray

known forHealthFit

1 app4.6Health & Fitness

Serves as a data-portability tool for power users who need to sync workout history across multiple fitness platforms.

StepsApp

known forStepsApp Pedometer

1 app4.8Health & Fitness

Coexists as a passive activity tracker for users who want simple step visualization alongside HeartWatch's cardiovascular focus.

Tam Tran

known forCardiora: Blood Pressure

1 app4.4Health & Fitness

Serves as a manual logging utility for users who need to track blood pressure and sugar alongside heart rate.

Think Tank Productions

known forDuffy - Steps Complication

1 app4.7Health & Fitness

Duffy provides a lightweight step-count complication for Apple Watch users who want quick data access without opening full apps.

WELLTECH APPS

known forMuscle Booster Workout Tracker

1 app4.6Health & Fitness

Provides structured training plans for users who want to pair biometric feedback with specific exercise routines.

Yassine IMGHARNE

known forSleep Tracker - Sounds & Tips

1 app4.0Health & Fitness

Sleep Tracker - Sounds & Tips combines sleep tracking with ambient soundscapes, serving users who want an all-in-one relaxation and monitoring tool.

家浩 汪

known forYaoYao - Jump Rope

1 app4.7Health & Fitness

YaoYao provides specialized jump rope tracking for users who want to supplement their health data with specific aerobic activity metrics.

施皓 王

known forSleep Tracker&Cycle,SleepScope

1 app4.6Health & Fitness

SleepScope focuses on dream tracking and habit building, providing a qualitative layer to the quantitative data tracked by AutoSleep.

赞美 陈

known forStressTracker: AI Stress Check

1 app4.7Health & Fitness

StressTracker focuses on psychological stress assessment using HRV data, providing a specialized biometric view for health-conscious users.

New entrants(2)

Foodvisor

known forFoodvisor - AI Calorie Counter

1 app4.7Health & Fitness

High-velocity newcomer leveraging computer vision for nutrition tracking, a key missing pillar in many health apps.

Viral Development

known forCal AI - Calorie Tracker

1 app4.8Health & Fitness

Emerging threat utilizing AI to simplify health tracking, showing rapid adoption since its 2024 launch.

The Analyst's Read

The bottom line on Tantsissa

Bottom line

Tantsissa is a highly efficient indie studio that has successfully commoditized premium health tracking by offering a privacy-focused, non-subscription alternative to major incumbents. Their high weighted rating of 4.63 across nearly 100,000 reviews indicates exceptional product-market fit.

Frequently asked questions

How many apps does Tantsissa publish?
Tantsissa has 5 apps tracked by Marlvel, primarily in the Health & Fitness category.
What kind of apps does Tantsissa make?
Tantsissa's portfolio is concentrated in Health & Fitness and Food & Drink, with an average rating of 4.3/5 across rated apps.
What is Tantsissa's top app?
By review volume across the portfolio, AutoSleep: Watch Sleep Tracker is Tantsissa's best-known app tracked by Marlvel.
In how many countries are Tantsissa's apps available?
Marlvel has tracked Tantsissa's apps across 12 countries.

What fed this analysis

Apps analyzed:
5
With full intel:
3
With overview:
5
Website scraped:
yes
Social presence:
yes

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Tantsissa, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Tantsissa intelligence.” Updated 2026-04-23. https://marlvel.ai/publishers/tantsissa

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Data licensed under CC-BY-NC 4.0