PCalc vs 6 Timers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PCalc
A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.
- Optional RPN mode
- Multi-line display
- Extensive unit conversions
- Paper tape
- Multiple undo/redo
- Hexadecimal, octal, binary support
- Apple Watch app
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PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation, as well as support for hexadecimal, octal, and binary calculations. Includes an Apple Watch app, so you can calculate on your wrist!
6 Timers
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Versatile set of 6 timers: - Monitor student activity time in classroom - Track client/patient office visit wait times - Multiple cook timers in kitchen - etc.
Screenshots
Verdict
The clearest difference is price: 6 Timers at $0.99 against PCalc's $9.99. 6 Timers also leads on in-app purchases (none vs 4). PCalc's advantage is update cadence (every 6 weeks vs every 18 months) and chart position (#83 vs unranked). On ads 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
PCalc costs $9.99 and 6 Timers $0.99 up front. PCalc sells 4 one-off in-app purchases. 6 Timers asks for nothing beyond the download.
PCalc ships an update every 6 weeks, 6 Timers every 18 months. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.
| Parameter | PCalc | 6 Timers |
|---|---|---|
| Price | $9.99 | $0.99 — better |
| Rating | 4.7 (770 ratings) — better | — |
| Positive reviews | 83.6% of reviews | — |
| Number of ratings | 770 — better | — |
| Update frequency | Every 6 weeks — better | Every 18 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #83 — better | — |
| Devices | iPhone, iPad, iPod, Apple Watch, Vision Pro — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17 |
| Further details — not scored | ||
| Size | 81 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | TLA Systems Ltd. | hmiMAX |
In-app purchases
PCalc
- Small Tip$0.99
- Medium Tip$1.99
- Large Tip$4.99
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- Enormous Tip$9.99
6 Timers
No in-app purchases
