Simple Calculator Multi vs Retro Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Calculator Multi
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This is a simple calculator that comes in handy when you want to do some quick calculations. It does not display ads and does not use unnecessary permissions. It supports multiple screens, so you can perform multiple calculations at the same time. You can change the look and feel with themes and customize it yourself. How to operate - Clear Button long press ... All clear - Backspace Button long press... Clear. - Screen long press - Copy or Paste - History long press... Copy or delete history. - Custom Theme long press... Delete or Rename.
Retro Calc
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A beautifully simple calculator with a nostalgic retro design. Featuring a classic seven-segment display and warm, vintage colors, Retro Calc makes everyday math feel pleasant and effortless. No clutter, no distractions — just the essentials, crafted with care. Highlights - Focused on the four basic operations (+ − × ÷) - A seven-segment display drawn like the real thing, with tapered, softly rounded strokes - Up to 12 digits, with comma grouping that keeps large numbers readable at a glance - Sculpted keys that feel good to press, with haptic feedback on every tap - Large, easy-to-read key labels - Safe error handling for division by zero and overflow - VoiceOver support Your privacy, respected - No internet connection, ever - No data collection of any kind - No ads - No account required Simple by design. A calculator you'll reach for every day.
Screenshots
Verdict
The clearest difference is update cadence: Retro Calc at every 3 weeks against Simple Calculator Multi's every 13 months. Simple Calculator Multi's advantage is iOS requirement (15.1 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Simple Calculator Multi ships an update every 13 months, Retro Calc every 3 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | Simple Calculator Multi | Retro Calc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 25 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | tadashi endo | Shuji Okuno |
In-app purchases
Simple Calculator Multi
No in-app purchases
Retro Calc
No in-app purchases
Questions
Is Simple Calculator Multi free?
Is Retro Calc free?
Do Simple Calculator Multi or Retro Calc have ads?
Which is updated more often, Simple Calculator Multi or Retro Calc?
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