WonderCalc vs Smart Instant Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WonderCalc
This utility app handles all your basic calculation needs, including unit conversions for length, weight, and temperature. It also offers advanced financial calculations for loans, such as monthly payments, total cost, and interest paid.
- Basic calculations
- Cut, copy, and paste functionality
- Unit conversions (length, weight, temperature)
- Loan payment calculations
- Total loan cost and interest calculation
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WonderCalc performs all basic calculations, and allows you to cut, copy, and paste values to and from other apps. It can convert between units of length, weight, and temperature. It allows you to calculate monthly payments, as well as total cost and interest paid on the life of a loan.
Smart Instant Calculator
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◇Why Smart Calculator?◇ ・Real-time results: No “=” required—answers appear as you type. ・Widget-first: Do the math right on the Home Screen, then hand off values to the app. ・Keep & Drop: Ditch confusing M+/M−. Save a value with Keep, remove it with Drop—simple and intuitive. ・Only the essentials: All the everyday functions you actually use. ・Designed for comfort: Clean UI and eye-friendly colors for long sessions. ・Completely free: Every feature, no paywall. ◇Recommended For◇ ・You want a clean, straightforward calculator ・The default calculator feels limited ・You prefer instant results and minimal taps ・Opening an app for every quick calc is a hassle
Screenshots
Verdict
The clearest difference is ads: WonderCalc at none against Smart Instant Calculator's shown. WonderCalc also leads on update cadence (every 5 days vs every 2 months) and iOS requirement (16.0 vs 18.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WonderCalc ships an update every 5 days, Smart Instant Calculator every 2 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.
| Parameter | WonderCalc | Smart Instant Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 5 days — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | SharkMonkey Apps | Ichi Hosotsuji |
In-app purchases
WonderCalc
No in-app purchases
Smart Instant Calculator
No in-app purchases
Questions
Is WonderCalc free?
Is Smart Instant Calculator free?
Do WonderCalc or Smart Instant Calculator have ads?
Which is updated more often, WonderCalc or Smart Instant Calculator?
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