TempVerter DB vs Quick Synonyms
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TempVerter DB
This app instantly converts temperatures between Celsius, Fahrenheit, and Kelvin as you type. It also includes a vast scientific database with over 225 important temperature references across various fields.
- Instant temperature conversion (C, F, K)
- Extensive scientific temperature database
- 225+ reference temperatures
- Covers astronomy, biology, chemistry, physics, and more
- Temperatures provided in C, F, and K
- Copy temperature values to clipboard
Read full descriptionHide full description
TempVerter DB is a temperature converter that also features a huge scientific temperature database. TempVerter DB converts temperatures to Fahrenheit, Celsius, and Kelvin on the fly as you type. The extensive built-in reference database contains over 220 important temperatures in the fields of astronomy, biology, chemistry, health, Earth science, climate change, physics, materials science, and more. Features: • Instantly converts temperatures to and from Celsius, Fahrenheit, and Kelvin on the fly as you enter them. • Reference database contains 225 important temperatures in the fields of astronomy, biology, health, Earth science, climate change, physics, materials science, cooking & food safety, and more. • Each database entry is given in Celsius, Fahrenheit, and Kelvin. • Copy button copies temperature values to the pasteboard for pasting into other app(s).
Quick Synonyms
Instantly find synonyms for any word directly within other iOS apps. Select text, tap Share, and choose the synonym lookup option.
- Text action extension
- In-app synonym lookup
- Share menu integration
- Works across system apps
Read full descriptionHide full description
Quick Synonyms provides an iOS text action extension that makes it easy to look up synonyms for words in any app on the system. Just select a word, tap Share from the menu that appears, and choose "Find Synonyms".
Screenshots
Verdict
The clearest difference is price: TempVerter DB at Free against Quick Synonyms's $4.99. TempVerter DB also leads on update cadence (every 6 weeks vs every 32 months) and ratings volume (17 vs 3). Quick Synonyms's advantage is rating (5.0 vs 4.8). On review sentiment, 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
TempVerter DB is free to download; Quick Synonyms costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Quick Synonyms holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: TempVerter DB has 17 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
TempVerter DB ships an update every 6 weeks, Quick Synonyms every 32 months. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.
| Parameter | TempVerter DB | Quick Synonyms |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 4.8 (17 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 17 — better | 3 |
| Update frequency | Every 6 weeks — better | Every 32 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 24 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Stebel | Furnace Creek Software LLC |
Customer experience
TempVerter DB
Quick Synonyms
In-app purchases
TempVerter DB
No in-app purchases
Quick Synonyms
No in-app purchases
