TapRec vs SketchCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TapRec
Instantly record audio with a single tap from your wrist or phone. Recordings sync automatically and are stored locally for privacy. Optimized for clear sound and small file sizes.
- One-tap recording
- Watch face complication
- Instant sync to iPhone
- High-efficiency M4A format
- 100% local storage
- No login or subscriptions
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Tap. Record instantly. Tap. Widget too. Tap. Talk, uninterrupted. TapRec is a simple and fast voice recorder for Apple Watch and iPhone. Record on your wrist, Manage on your phone. • One-tap recording: Start instantly from your screen or watch face. • Complication Support: Quick access from your Apple Watch face. • Instant Sync: Watch recordings appear on your iPhone automatically. • Optimized Format: High-efficiency M4A for clear sound and small file size. • Privacy First: 100% local storage. No cloud, no tracking. • No login required • No subscriptions Your recordings stay private. TapRec respects user privacy and complies with local laws. All recordings are stored locally on your device.
SketchCalc
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SketchCalc combines a scientific calculator, a visual math notebook and a bill splitter in one workspace. Calculate, graph, sketch and organize your ideas directly on the page. No account is required for the core notebook. **SCIENTIFIC CALCULATOR & LINKED MATH** Work with fractions, percentages, powers, roots and trigonometric expressions. Connect calculations so dependent results can update when source values change. Explore supported algebra and step-by-step math solutions. **GRAPHS, SLIDERS & VISUAL NOTES** Plot functions, adjust values with sliders and keep graphs beside calculations. Add handwritten notes, pencil sketches, shapes and diagrams to build a readable visual record of your work. **BILL SPLIT & RECEIPT SCANNING** Divide restaurant bills and shared expenses. Add items and people, assign purchases, and account for tax, tips, service charges and discounts. Where supported, scan a receipt to help enter the bill. Always review recognized amounts before splitting. **SCAN & SOLVE** Capture or select an image containing supported math expressions. Review recognized symbols, explore available solution steps and add supported results to your notebook. Recognition and calculation are handled locally on your device. **SAVE & EXPORT** Keep your pages and project files on your device. Reopen your work and export supported content, including PDF. Some export formats and advanced tools require PRO or a rewarded unlock. **FREE & PRO** The Free version includes a first notebook page with up to 10 rows. Completing a rewarded ad can unlock a second 10-row page for 48 hours; its saved content remains on your device after the unlock expires. Selected advanced tools and Bill Split have separate rewarded access limits. Rewards are granted only after an ad is completed. SketchCalc PRO is a one-time purchase that removes ads and unlocks expanded pages, rows and tools. Availability of scanning and advanced calculations may vary by device and operation. Check important calculations and recognized text before relying on them.
Screenshots
Verdict
The clearest difference is in-app purchases: TapRec at none against SketchCalc's 1. TapRec also leads on ads (none vs shown). SketchCalc's advantage is iOS requirement (15.0 vs 17.6). On price and device support 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. SketchCalc sells 1 one-off in-app purchase. TapRec asks for nothing beyond the download.
| Parameter | TapRec | SketchCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | Seungyoung Kim | OZGUN EVREN ERTURK |
In-app purchases
TapRec
No in-app purchases
SketchCalc
- SketchCalc Pro$8.99









