Solo Trip vs Calc4Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solo Trip
This app tracks your distance for various activities like running, walking, biking, and driving. It provides essential metrics such as pace, speed, and distance covered. Detailed driving data can be exported for year-end review.
- Distance tracking
- Pace and speed metrics
- Run/Walk mode with mile alerts
- Bike mode with average speed
- Driving mode with exportable data
- Kilometer support
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Solo Trip is a no-frills distance tracker that focuses on the essentials. Also supports tracking in kilometers! - Run/Walk Mode: Track your distance and your pace. Beeps every mile so you can stay on track. - Bike Mode: See your average and current speed over the trip as well as the data displayed in Run/Walk mode. - Driving Mode: More detailed tracking so you can export your data at the end of the year.
Calc4Key
Perform calculations directly within your keyboard, eliminating the need to switch apps or copy-paste results. This utility allows you to calculate anywhere you type, enhancing productivity and convenience.
- Calculator on keyboard
- Calculate anywhere
- No app switching
- No copy-paste results
- Easy keyboard selection
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Use calculator directly on keyboard anywhere, anytime. No switch apps, no copy and paste results anymore! You must enable the keyboard under system settings, then select it in your keyboard, using the globe button. 1. Open the settings app 2. Go General > Keyboard > Keyboards > Add New Keyboard 3. Add Calc4Key 4. Start typing in any app 5. Press "globe" icon to switch to the Key4Cal keyboard 6. Enjoy
Screenshots
Verdict
The clearest difference is price: Solo Trip at Free against Calc4Key's $0.99. Solo Trip also leads on review sentiment (81% vs 63%). Calc4Key's advantage is update cadence (daily vs every 2 months) and device support (3 vs 1). On rating, ratings volume, 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
Solo Trip is free to download; Calc4Key costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Solo Trip holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 2K and 821 respectively. Written reviews point the same way: 81% of Solo Trip's written reviews are positive against 63% of Calc4Key's.
Solo Trip ships an update every 2 months, Calc4Key daily. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.
| Parameter | Solo Trip | Calc4Key |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.8 (2K ratings) — better | 4.6 (821 ratings) |
| Positive reviews | 81.1% of reviews — better | 62.5% of reviews |
| Number of ratings | 2K — better | 821 |
| Update frequency | Every 2 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | John Palacios | Khang Le |
Customer experience
Solo Trip
Calc4Key
Bugs and requests
Solo Trip
Reported bugs
4 issues- Pause button not working correctly
- Distance tracking issues when pausing/resuming
- Overlapping date and distance display
- Inconsistent GPS tracking accuracy
Requested features
4 requests- Add ability to manually edit/add trips
- Implement iCloud sync for cross-device use
- Add option to name/label individual trips
- Provide more data export options
Calc4Key
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Solo Trip
No in-app purchases
Calc4Key
No in-app purchases
