Sun Apps
For students and technical power users seeking clean, ad-free organizational and developer utilities.
School Assistant – Planner
Snapshot
Who is Sun Apps?
Providing students and power users with ad-free, utility-focused tools designed for the Apple ecosystem.
Target audience
Portfolio
Free 3Last updated
School Assistant – Planner
vVARY
6.9y ago
Publisher DNA
What defines Sun Apps?
Publisher DNA
Primary focus
Ad-free utilities and educational tools for the Apple ecosystem
Scale
indie
Target audience
Students and technical power users seeking clean, ad-free organizational and developer utilities.
Origin
Founded by Dylan McDonald, a Swift Student Challenge winner and RIT student who has been developing apps since 2017.
Signature Patterns
- •Strict 100% free pricing model with no ads or paywalls
- •Deep integration across the Apple ecosystem, including Apple Watch and iPad optimization
- •Focus on utility-driven tools for niche technical or academic audiences
- •Monetization limited to voluntary 'tip jar' support
Portfolio momentum
The portfolio is in a maintenance phase with 1 release in the last 6 months and 50% of the 4-app catalog currently active.
Company profile
high confidence- Headquarters
- Rochester, USA
- Founded
- 2017
- Employees
- 1-10
Portfolio
What does Sun Apps ship?
Apps
4 apps analysed
iCloud sync provides multi-device persistence for professional workflows
- Microscopists find the tool highly convenient for quick calculations while working in the field
- Users report that resolution and field of view changes do not apply correctly within games
Everything a student needs to stay organized now fits in your pocket! 🎒📲
100% free/no-ad model creates high user trust
- Ease of Use
- Technical Issues
Customizable counting intervals allow users to track specific quantities without repetitive manual input actions
- The clean and modern interface makes tallying and countdown tasks feel simple for daily users
- App crashes and data clearing failures prevent long-term users from maintaining their existing tally records
Single-market publisher, every app ships only to United States.
Based on 1 of 4 apps with localized market data, more coverage rolling in as scans complete · last scanned .
Americas (1)
- United States1 / 1
Core markets (1/1 apps)
User Sentiment
How do users feel about their apps?
3
Positive apps
0
Neutral / mixed
0
Negative apps
76/100
Avg sentiment score
Rivals
Who does Sun Apps compete with?
The rivals identified
Nemeses(3)
Both applications target users needing precise display metrics, competing directly on screen dimension calculations. PPI Calc focuses on pixel density and educational definitions, while Resolutioner targets professional dimension storage.
With 157,368 reviews and a high 4.8 rating, this app operates at a scale 36x larger than the target app while maintaining extreme development velocity (15 releases in 6 months).
DayCount is the dominant force in the countdown space with 26,262 ratings and a high update frequency of 2 releases in the last 6 months.
Contenders(13)
Both applications provide aspect ratio calculation tools for designers and developers managing image dimensions.
Both applications target professionals requiring quick mathematical proportion calculations on Apple devices. Aspect Ratio Pro competes directly for users needing aspect ratio math, though at a significantly higher price point.
DPI Calculator competes directly with Resolutioner by offering a free alternative for calculating display settings from resolution and diagonal inputs.
Both utilities target developers managing display dimensions, offering specific resolution calculation tools for screen sizes.
Both applications target users needing display dimension calculations, with PPI Calc offering a direct alternative to Resolutioner's aspect ratio calculator via its standard resolution presets.
Both applications target designers and developers requiring precise dimension management on Apple platforms. While Resolutioner focuses on calculation and preset storage, the rival provides direct measurement overlays for existing images.
Directly challenges the target's 'beautiful' design value proposition with 2,488 ratings and a 4.71 score.
Both applications target designers requiring quick dimension calculations, offering preset-based aspect ratio tools for asset sizing.
This is the most direct functional rival in the Education category with a similar scale of 6,147 reviews compared to the target's 4,280.
Both applications target designers requiring precise dimension calculations by providing offline aspect ratio calculators and saved preset histories.
Both applications target designers requiring quick dimension calculations. The rival focuses specifically on ratio-based math while Resolutioner handles broader display resolutions.
A high-performing direct utility rival maintaining a superior 4.81 rating across 12,101 reviews.
Both applications target digital designers and technical users requiring display dimension calculations, with Megapixel Calculator offering a free alternative to Resolutioner's paid utility.
Same space(25)
Targets the same professional and student demographic as Resolutioner by providing high-precision math and scratchpad integration.
Provides a necessary workflow tool for the same developer audience as Resolutioner by enabling desktop-class web navigation.
Serves the same developer and marketer audience as Resolutioner by ensuring media meets App Store specifications.
A high-quality niche rival with a 4.82 rating across 1,711 reviews, competing for the same 'A+ student' demographic.
Provides the same mathematical utility as Resolutioner for users needing to solve proportions and scale problems.
Appeals to the same professional user base as Resolutioner by emphasizing history management and UI customization.
A well-known name in college scheduling with 1,713 reviews, though currently hindered by lower user satisfaction.
Organizes media by the same aspect ratio parameters that Resolutioner calculates for designers.
Applies the same calculation utility as Resolutioner to the specific domain of automotive tire sizing.
Complements Resolutioner by providing image format compatibility tools for the same design-focused audience.
Offers a broader utility set than Resolutioner by combining scientific functions with a history tape for repeat tasks.
As an ecosystem giant with 111,680 reviews, it represents the primary platform students and parents use for school data, often alongside a dedicated planner.
Directly overlaps with Resolutioner's core utility by calculating display parameters for monitors and phones.
Offers a broader range of conversion categories than Resolutioner for users needing general-purpose utility.
Shares the utility-focused nature of Resolutioner by providing quick conversion for various physical measurements.
Addresses the same aspect ratio concerns as Resolutioner but specifically for web video playback.
An adjacent sub-genre rival that captures 'counter' search intent with a massive 12,572 rating base.
Addresses the same image dimensioning needs as Resolutioner but focuses on cropping rather than calculation.
Provides a wider range of specialized calculators than Resolutioner, including loan and discount tools for general users.
Focuses on the lifestyle and event-tracking aspect of the target's countdown feature with 1,025 ratings.
Serves the same general utility audience as Resolutioner but focuses on high-visibility button layouts for daily arithmetic.
Serves the same engineering and scientific audience as Resolutioner through a comprehensive set of conversion tables.
Shares the niche calculation focus of Resolutioner by providing specialized scale conversion for modelers.
Directly competes with Resolutioner for professional users by offering advanced equation solvers and unit converters.
Targets the same utility-seeking audience as Resolutioner with a focus on minimalist measurement transformations.
New entrants(2)
A rising threat in student productivity updated as recently as February 2026, leveraging gamification to capture the same student audience.
The closest candidate in scale to the target app, showing renewed activity with a release in February 2026.
The Analyst's Read
The bottom line on Sun Apps
Bottom line
Sun Apps is a mission-driven indie developer that differentiates through a radical anti-monetization stance. While this builds significant user goodwill, the portfolio's long-term viability depends on the developer's ability to maintain a diverse set of niche utilities as a solo operator.
Frequently asked questions
How many apps does Sun Apps publish?
What kind of apps does Sun Apps make?
What is Sun Apps's top app?
In how many countries are Sun Apps's apps available?
What fed this analysis
- Apps analyzed:
- 4
- With full intel:
- 3
- With overview:
- 4
- Website scraped:
- yes
- Social presence:
- no