Temperature Converter vs Units Plus Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Temperature Converter
Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with a clean and intuitive interface. This utility app offers quick and accurate conversions for everyday use. Ads are present but can be removed via a one-time purchase.
- Celsius conversion
- Fahrenheit conversion
- Kelvin conversion
- User-friendly interface
- Ad removal option
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A striking & user-friendly temperature converter! Quickly convert temperatures between Celsius, Fahrenheit & Kelvin. Ad Supported. Ads can be removed with a one-time in-app purchase.
Units Plus Converter
Easily convert between various units and currencies with a simple, intuitive interface. Features live currency updates for 155 world currencies, refreshed every 15 minutes. Optimized for a wide range of Apple devices, including iPads with Split View support.
- Unit conversion across 12 categories
- Live currency updates for 155 currencies
- Optimized for iPhone and iPad
- iPad Split View support
- Data-computer data conversion
- Fuel-mileage conversion
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SWAP units by pressing button on keypad (lower left) OPTIMIZED for iPhone X, XS, XS Max, XR, 5, 5S, SE, 6, 6+, 7, 7+, 8, 8+ OPTIMIZED for iPad Pro 12.9 (1st, 2nd, 3rd gen), 11, 10.5, 9.7, Air, Air 2, Mini (2nd, 3rd, 4th) iPad Split View supported. ***Now with LIVE Currency Updates for all major currencies in the world*** Very simple and beautifully designed unit converter with 12 categories and many different units: CONVERT: *Area *Currency (155 world currencies updated every 15 min.) *Data-computer data (byte, kilobyte, megabyte, etc.) *Fuel-milage *Length *Power *Pressure *Speed *Temperature *Time (days, weeks, hours, etc.) *Volume (dry and wet) *Weight-mass Currency exchange rates are downloaded every 15 minutes when app is open. Every download uses very small amount of data. Around 1-2kb. Internet connection required. 155 currencies available - This is all world currencies with their respective country flags.
Screenshots
Verdict
The clearest difference is price: Temperature Converter at Free against Units Plus Converter's $19.99. Units Plus Converter's advantage is in-app purchases (none vs 3) and update cadence (every 5 weeks vs every 6 months). On rating, review sentiment, ratings volume and 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
Temperature Converter is free to download; Units Plus Converter costs $19.99 up front. Temperature Converter sells 3 one-off in-app purchases. Units Plus Converter asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Temperature Converter against 4.9 for Units Plus Converter. Both are backed by a comparable volume of ratings — 6.3K and 8.4K respectively. Written reviews split almost evenly too, at 91% and 91% positive.
Temperature Converter ships an update every 6 months, Units Plus Converter every 5 weeks. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.
| Parameter | Temperature Converter | Units Plus Converter |
|---|---|---|
| Price | Free — better | $19.99 |
| Rating | 4.8 (6.3K ratings) | 4.9 (8.4K ratings) — better |
| Positive reviews | 91.5% of reviews — better | 91.0% of reviews |
| Number of ratings | 6.3K | 8.4K — better |
| Update frequency | Every 6 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Armchair Engineering | Alan Mrvica |
Customer experience
Temperature Converter
Units Plus Converter
User reviews
Temperature Converter
From 6.3K App Store ratingsWhat we love
- 👍 Simple and easy to use
- 🚀 Accurate and fast conversions
- 💡 Useful for international communication
- 🚀 Excellent app for the job
- 👍 Straightforward and effective
Room to improve
- 🔍 Needs more customization options
- 💰 Too many ads
- 🔍 Inaccurate temperature calculations
Units Plus Converter
From 8.4K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Convenient and reliable
- 💰 Worth the purchase
- 🌍 Helpful for travel and international use
- 📊 Comprehensive range of conversions
Room to improve
- 🐛 Occasional crashes or bugs
- 🔢 Limited unit options in some categories
- 🔍 Unintuitive interface for certain conversions
- 💰 Overpriced for the features offered
Bugs and requests
Temperature Converter
Reported bugs
2 issues- Inaccurate Kelvin temperature conversions
- Occasional crashes or freezes
Requested features
3 requests- Add Rankine temperature scale
- Increase font size for better readability
- Provide color customization options
Units Plus Converter
Reported bugs
3 issues- Decimal input not working
- Currency conversion not updating properly
- App crashing on certain devices
Requested features
5 requests- Add feet and inches conversion option
- Include kilojoules to calories conversion
- Improve currency conversion accuracy
- Add time zone conversion feature
- Provide more advanced unit options (e.g. torque, density)
In-app purchases
Temperature Converter
- Upgrade Reduced$0.99
- Upgrade$1.99
- Upgrade Hero$3.99
Units Plus Converter
No in-app purchases
Questions
Is Temperature Converter free?
Is Units Plus Converter free?
Which has better reviews, Temperature Converter or Units Plus Converter?
Do Temperature Converter or Units Plus Converter have ads?
Which is updated more often, Temperature Converter or Units Plus Converter?
Other comparisons
