SUM+= Simple Expense Tracker vs Sumlet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SUM+= Simple Expense Tracker
This finance app simplifies expense tracking with AI assistance, allowing for quick data entry and powerful analysis through large language models. It prioritizes user control and privacy with local data storage and a minimalist design.
- AI-assisted data entry
- LLM analysis and forecasting
- Minimalist and beautiful design
- Local data storage and privacy
- User-controlled database
- Subscription options with free trial
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There are hundreds of expense tracker apps and they all do more or less the same thing. But oddly enough, not a single one suited my needs, so I developed my own. Through small but targeted adjustments, I've developed the app to become my preferred solution: • Control stays with the user while data entry is greatly simplified: The time between "open app" and "entry saved" has been reduced to a minimum. AI can support this process so that in many cases you wouldn't even need to open the app • AI analysis through LLMs: Instead of developing custom analysis logic, the app prepares your data so it can be used directly in Large Language Models like ChatGPT or Claude: for analysis, forecasts and recommendations • Minimalist design: The app is designed to look beautiful and works without distracting extras • Full control & privacy: No login, no account. Data stays locally on your device. You have complete control over your own database. If you want to share your data with an AI, you decide that yourself Financial barriers shouldn't stand in the way of your personal financial planning with Sum. Contact us for individual solutions via the support form. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Sumlet
A minimalist personal finance app for quick and effortless daily expense and income logging. It offers clear spending insights and keeps your financial data private and offline on your device.
- Fast expense and income entry
- Clear spending insights with charts
- Private and offline data storage
- Simple daily transaction summaries
- Intuitive keypad for quick logging
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Expense tracker for everyday spending. Open, type, and done~ Check, sum, and done~ Change, set, and done~ Sumlet is a minimalist personal finance app designed to make recording daily expenses and income quick, clear, and effortless. With a clean interface and an intuitive keypad, logging a transaction takes only seconds. No ads. No account registration. No internet required. Your financial data stays on your device, private and under your control. KEY FEATURES • Fast Expense & Income Entry Record expenses and income in seconds with an intuitive keypad. • Clear Spending Insights Understand your spending habits at a glance with simple charts and summary statistics. • Private & Offline Track expenses without an account, cloud sign-up, or unnecessary data collection. Your financial information stays on your device. • Simple Daily Summaries Filter, review, and edit your transactions with clear day-by-day summaries. WHY SUMLET? Many money management apps are packed with features you may never use, forced sign-ups, and intrusive ads. Sumlet focuses on what matters: fast entry, simple insights, and private expense tracking. Take control of your everyday spending with a clean, clutter-free expense tracker. Download Sumlet today.
Screenshots
Verdict
The clearest difference is in-app purchases: Sumlet at none against SUM+= Simple Expense Tracker's 4. SUM+= Simple Expense Tracker's advantage is update cadence (every 4 days vs every 2 weeks). On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SUM+= Simple Expense Tracker sells 4 in-app purchases, starting at $3.99 per month. Sumlet asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for SUM+= Simple Expense Tracker against 5.0 for Sumlet. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
SUM+= Simple Expense Tracker ships an update every 4 days, Sumlet every 2 weeks. Both last shipped on October 31, 2026.
| Parameter | SUM+= Simple Expense Tracker | Sumlet |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 4 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.2 | 26.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonas Zimmermann | Karas Xiang |
Customer experience
SUM+= Simple Expense Tracker
Sumlet
In-app purchases
SUM+= Simple Expense Tracker
- SUM Pro1 Month trial$3.991 Month
- SUM Pro1 Month trial$22.991 Year
- 7-day TrialFree
- Sum Premium$6.99
Sumlet
No in-app purchases









