Instant Unit Calc vs WOREAPP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Instant Unit Calc
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Simple Calculator combines a calculator and a unit converter in one app -- see your result converted into other units as you type, no switching required. Key features: - Handles complex expressions with parentheses, not just the four basic operations - An always-visible conversion panel across 5 categories: length, weight, volume, area, and temperature - Mixed-unit math like "2 cm + 3 kg" -- results are kept per unit instead of forcing a wrong conversion - Real dimensional analysis: "3 m × 4 m = 12 m²" -- multiplying and dividing changes the unit correctly - Cross-category multiplication/division shows a synthesized unit, like "10 mL ÷ 2 kg = 5 mL/kg" - Define your own custom units, like "1 gold coin = 17 silver coins, 1 silver coin = 23 copper coins" - Three themes: Light, Dark, and follow system setting - A focused, uncluttered interface -- no extra features to get in your way
WOREAPP
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Explore digital asset history with clear charts, flexible observation periods, and personal research tools. Review historical Bitcoin, Ethereum, and Solana prices, examine price changes, and save analysis snapshots alongside your notes. Add assets, enter prices, import CSV files, and export records whenever needed. Keep your personal research organized locally without creating an account. Choose light or dark mode for comfortable viewing. Share detailed feedback with a written description and up to four images. Select screenshots from your photo library or take a new photo, then choose a receiving app through the system share sheet. Your feedback is never sent automatically.
Screenshots
Verdict
The clearest difference is ads: WOREAPP at none against Instant Unit Calc's shown. On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Instant Unit Calc | WOREAPP |
|---|---|---|
| Price | Free | Free |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 34 MB | 2 MB |
| Age rating | 4+ | 17+ |
| Developer | Keisuke Yamakawa | VENTURE TECH INVEST SRL |
In-app purchases
Instant Unit Calc
No in-app purchases
WOREAPP
No in-app purchases





