Calculator vs PlusOne Watch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
A straightforward calculator designed for Apple Watch, featuring a clear display and large buttons for easy operation. It handles basic, scientific, and tip calculations efficiently.
- Clear display
- Large buttons
- Basic calculations
- Scientific calculations
- Tip calculations
- Apple Watch optimized
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Now with a Unit Converter for length, weight, temperature and volume, controlled with the Digital Crown. A simple, clear calculator with large buttons that makes calculations easy on your Apple Watch. Whether it's a quick tip, everyday math, or scientific functions like sin, cos, and tan, this app has you covered—no phone needed. Ask Siri to calculate a sum or convert units without opening the app.
PlusOne Watch
A straightforward utility for tracking any kind of count directly from your watch face. Easily add custom labels for wins, plays, drinks, or anything else you need to tally. Swipe left to delete unused labels.
- Count anything with custom labels
- Display count directly on watch face
- Simple and intuitive interface
- Delete labels by swiping left
- Supports iPhone and iPod
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+1 is a simple counter app with a complication. Count anything, wins, plays, drinks, or any custom label, and see the total count directly from your watch face. Pro tip: you can delete a label you don't use anymore by swiping to the left.
Verdict
The clearest difference is price: PlusOne Watch at Free against Calculator's $0.99. PlusOne Watch also leads on iOS requirement (13.0 vs 15.0). Calculator's advantage is update cadence (every 4 weeks vs every 3 months). On ads, in-app purchases 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
PlusOne Watch is free to download; Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calculator ships an update every 4 weeks, PlusOne Watch every 3 months. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.
| Parameter | Calculator | PlusOne Watch |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPod, Apple Watch |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Hemal Modi | Basile Bruneau |
Customer experience
Calculator
PlusOne Watch
In-app purchases
Calculator
No in-app purchases
PlusOne Watch
No in-app purchases
