MyStyleCalc vs SessionTap
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
MyStyleCalc
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MyStyleCalc- The Calculator That Thinks the Way You Do Tap any history entry to instantly load it into your current expression. No retyping, no interruptions, just pure flow. [ Smart History That Works for You ] Automatically saves your last 8 calculations. One tap picks up right where you left off. The magic is in the details โ once you experience this smoothness, there's no going back. [ Make It Yours ] Choose from built-in light and dark themes, or open the custom color palette and dial in exactly the look you love. Your calculator, your rules. [ New: Live Currency Conversion ] Your perfect travel companion for overseas trips and international shopping! Supports 25 major global currencies with an exclusive triple-currency side-by-side layout โ reading exchange rates has never been easier. - Live expression preview: Type a math expression directly in the primary currency field (e.g. 6x6) and see the converted result update in real time โ no mental math required. - Smart offline mode: Stuck with spotty signal abroad or no Wi-Fi on the plane? No problem. The app automatically falls back to the last saved exchange rates, so you can keep calculating anywhere. [ Base Conversion ] Instantly convert between binary, octal, decimal, and hexadecimal โ and perform addition, subtraction, multiplication, and division directly in any base. Copy results with a single tap. Whether you're a software engineer, a student, or just curious, it's built for everyone. [ Handy Unit Conversion ] Length, speed, weight, volume, and area โ all in one screen. Type an expression and watch the converted value update as you type. From everyday units like kilometers and kilograms, to uniquely Taiwanese measurements like ping, jia, and fen โ it's all here. [ Voice Readout ] Every key press and calculation result can be read aloud. Supports both fluent speech and character-by-character reading, in Chinese or English, with adjustable speed โ so you can double-check every figure with confidence and fewer mistakes. [ Zero Interruption, Always ] Ads sit quietly in a corner where they'll never get in your way. Full-screen pop-up ads? Never. We believe a great user experience will always matter more than squeezing out extra revenue.
SessionTap
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Mark what happens. Review what matters. SessionTap turns your iPhone into a live observation tool. Tap colored buttons to record timestamped events while your eyes stay on the subject. WHO IT'S FOR ABA therapists and RBTs collecting behavioral data. Sports coaches tracking plays, shots, and fouls. UX researchers logging hesitations, errors, and task completions. Classroom teachers recording engagement and participation. Anyone replacing paper tallies with something better. REUSABLE BOARDS Create a board with the event buttons you need, or start from five built-in templates: ABA Basics, Sports Scouting, UX Research, Classroom Assessment, and Simple Counter. Set up once, reuse for every session. TWO EVENT MODES Frequency: tap to count. Each tap is timestamped. Duration: tap to start, tap to stop. Track how long behaviors last. Run multiple durations at the same time. TIMERS THAT SURVIVE INTERRUPTIONS Lock your phone, take a call, switch apps. Your session keeps running. Duration timers stay accurate. SessionTap uses absolute timestamps instead of in-memory timers, so nothing resets when the screen turns off. This is a known problem with other observation tools. We solved it. REVIEW AND EXPORT See total counts, rates per minute, and duration percentages after each session. Filter the timeline by event type. Add notes for context. Export as CSV for spreadsheets, clinical documentation, or team sharing. SIMPLE PRICING $6.99, once. Not a subscription. Other observation apps charge $28/month or $80 for a permanent license. SessionTap costs less than a single month of alternatives and lasts forever. Start with 3 free sessions. Full functionality, no restrictions. See if it fits your workflow before you buy. PRIVATE BY DESIGN All data stays on your iPhone. No accounts, no cloud, no tracking. Your observation data never leaves the device unless you export it yourself.
Screenshots
Verdict
The clearest difference is ads: SessionTap at none against MyStyleCalc's shown. MyStyleCalc's advantage is update cadence (every 2 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
MyStyleCalc ships an update every 2 weeks, SessionTap every 3 months. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.
| Parameter | MyStyleCalc | SessionTap |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks โ better | Every 3 months |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 18.0 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 12 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Chi An Cheng | 9592 Solutions UG |
In-app purchases
MyStyleCalc
No in-app purchases
SessionTap
No in-app purchases
Questions
Is MyStyleCalc free?
Is SessionTap free?
Do MyStyleCalc or SessionTap have ads?
Which is updated more often, MyStyleCalc or SessionTap?
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