Abacus is an open-source iOS client for Firefly III personal finance managers, designed for users who self-host their financial data.
Product velocity
Dormant
Daily rank 🇺🇸
—
Finance
Sentiment
4.9
43 reviews
Nemesis
OVO
The App DNA
What makes this app unique?
Users hire Abacus to maintain full data sovereignty over their financial history without relying on third-party cloud aggregators or analytics-heavy interfaces.
For Self-hosting enthusiasts and users of the Firefly III personal finance manager who require mobile access to their private data.
What does it look like?
Key features
Connects directly to a personal Firefly III instance via OAuth2 for private finance management
Stores access and refresh tokens in iOS Keychains for secure authentication
Excludes all external API calls, analytics, and crash reporting services
How much does it cost?
The application is distributed as a free, open-source tool with no monetization or paid tiers identified.
Velocity
Dormant developmentUX improvementsperformanceShow more...
The app has not received a release in over 7 months, placing it firmly in the zombie category based on the current date of May 26, 2026. The single available version provided features a mix of bug fixes and minor UI improvements, but the lack of any subsequent activity indicates a complete cessation of development. There is no evidence of ongoing maintenance or live operations. The project appears to be abandoned.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Abacus for Firefly III
How's the Finance market?
Abacus maintains a 4.88 rating across 43 reviews, signaling high satisfaction within its niche technical segment. The lack of broader chart rankings reflects its specialized, self-hosted focus rather than mass-market intent.
Read the market outlookThe rivals identified
By Visionet Internasional, Pt
OVO competes for the same mobile-first financial management wallet share, though it operates as a massive ecosystem platform compared to Abacus's niche self-hosted focus.
- OVO leverages a massive merchant network and loyalty point system that Abacus lacks entirely.
- OVO provides integrated bill payments and premier membership tiers for high-frequency transactional users.
- Abacus offers superior data privacy by avoiding external analytics and third-party tracking services.
Subspace: SubscriptionsContender
Leading Edge Admin MobileContender
Adesso MobileContender
Peak1 AdminContenderUnlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for Abacus for Firefly III
Where is it heading?
The self-hosted finance market remains stable but isolated from the broader fintech trend of automated bank aggregation. Abacus is well-positioned to serve this privacy-conscious segment, provided it maintains API parity with Firefly III updates.
- The app maintains a steady, niche-focused update cadence, ensuring compatibility with the underlying Firefly III API for its core user base.
The SWOT
- Privacy-first architecture avoids third-party tracking
- Open-source codebase allows user-led security audits
- Keychain-based authentication ensures local data sovereignty
- Develop a companion desktop-sync utility
- Create simplified onboarding for non-technical users
Next best moves
Ship a simplified onboarding guide because the technical barrier is the top friction point → increase user conversion
The counter-intuitive read
The lack of analytics is not a weakness but a strategic asset…
Read the full takeFeature gaps
Automated bank feed connections (available in Kashoo but absent here) +1
Since the last report: The competitive landscape has been re-evaluated to include institutional financial apps, and the strategic focus has pivoted toward lowering onboarding friction for non-technical users.
Bottom line
Abacus delivers a secure, private experience for Firefly III power users, but the reliance on self-hosted infrastructure limits its growth potential, so the PM should prioritize lowering the onboarding barrier to capture adjacent non-technical users.
Unlock 3 critical frictions, 3 market threats and the analyst’s take.
Access the full report for freeReport last updated