HABa Tracker vs Math Keyboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HABa Tracker
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Use this simple app to track your hearing aid batteries. Know if your batteries will last through the next day because you track their usage and know when they'll run out. Decide which brands work best in your hearing aid.
Math Keyboard
This custom keyboard simplifies typing mathematical and physics symbols, including Greek letters and superscripts/subscripts. Seamlessly input formulas into any app without needing to copy and paste from external sources. Enhance your notes, reports, and messages with ease.
- Superscripts/subscripts for numbers, letters, and symbols
- Greek letters support
- Wide variety of math symbols
- Familiar keyboard layout
- Quick tab switching
- Cursor control via long-press
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Struggling to type math symbols on your phone? Math Keyboard is a custom keyboard that lets you input the symbols, Greek letters, superscripts, subscripts, and more commonly used in math and physics — directly from your keyboard. No more searching the web every time just to copy a symbol. From class notes and reports to chats and memos, type math expressions smoothly in any app. 【Key Features】 Superscript / subscript for numbers, letters, and symbols Full Greek alphabet support Rich set of math symbols (basic) Custom keyboard support 【Highlights】 Same look and feel as the standard keyboard Shift key to toggle superscript / subscript (or uppercase / lowercase) Easy tab switching within the keyboard Long-press the Space key to move the cursor Add and reorder categories 【About Pro】 The free version has limited categories. Upgrade to Pro to unlock all categories, including: Standard alphabet Advanced math symbols (calculus) Arrows Logic & sets Custom keyboard You can also switch the alphabet display style between italic and regular. ※ This in-app purchase is a one-time payment. ※ To use this keyboard, you need to add it and enable "Allow Full Access" in the Settings app. (We do not collect any of your input — your privacy is fully protected.)
Screenshots
Verdict
The clearest difference is iOS requirement: HABa Tracker at 15.6 against Math Keyboard's 26.2. On price, update cadence, ads and in-app purchases 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. HABa Tracker sells 1 one-off in-app purchase and Math Keyboard sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
HABa Tracker ships an update every 2 months, Math Keyboard every 5 weeks. The most recent releases landed on September 26, 2026 and October 10, 2026 respectively.
| Parameter | HABa Tracker | Math Keyboard |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.5 (4 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 56 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Duenas | Yuta Nishimatsu |
In-app purchases
HABa Tracker
- Remove ads$1.99
Math Keyboard
- MathKeyboard Pro$5.99









