SketchCalc vs TaskTerminal
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
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.
TaskTerminal
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TaskTerminal β Your personal task organizer with a retro-inspired interface. TaskTerminal brings the feeling of classic electronic organizers into a modern productivity app. Designed with a minimal LCD-inspired interface, it helps you capture, organize, and complete your tasks without unnecessary distractions. Capture tasks instantly Use Inbox to quickly save new tasks as they come to mind. No need to organize everything immediately. Add your ideas first, then decide later how and when they should be completed. Plan your day Your Plan gives you a clear overview of what matters today. See: * overdue tasks that still need attention * tasks scheduled for today * upcoming days by scrolling further through your timeline Stay focused on the present while keeping your future plans within reach. Organize with groups Create custom groups to structure your tasks your way. Each group can have: * its own icon * its own accent color Tasks automatically inherit their groupβs visual identity, making your system easy to scan and understand. Smart scheduling TaskTerminal supports flexible planning: * one-time tasks * daily repeats * weekly repeats with custom weekdays * monthly repeats * custom intervals Set up recurring tasks while keeping full control over your schedule. Designed for focus TaskTerminal is built around simplicity: * fast task creation * intuitive swipe actions * clean list-based organization * minimal dialogs * focused interactions Every element is designed to feel like a dedicated productivity device rather than another overloaded task app. A modern tool with a classic soul Inspired by the technology of the 80s and 90s, TaskTerminal combines nostalgic LCD aesthetics with modern iOS interactions. A simple system for your tasks. A clearer way to plan your day.
Screenshots
Verdict
The clearest difference is in-app purchases: TaskTerminal at none against SketchCalc's 1. TaskTerminal also leads on ads (none vs shown). SketchCalc's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and update cadence there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. SketchCalc sells 1 one-off in-app purchase. TaskTerminal asks for nothing beyond the download.
SketchCalc ships an update every 2 weeks, TaskTerminal weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | SketchCalc | TaskTerminal |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Weekly β better |
| Ads | Yes | No β better |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.0 β better | 18.0 |
| Further details β not scored | ||
| Size | 48 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | OZGUN EVREN ERTURK | Moritz Staigl |
In-app purchases
SketchCalc
- SketchCalc Pro$8.99
TaskTerminal
No in-app purchases









