MyCal vs Formula
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyCal
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MyCal is the calculator that works like a notepad. Most calculators forget everything the moment you hit "=". MyCal doesn't. Write your math across multiple lines, edit any number, and watch every result update instantly. It's the fast, visual way to work through anything — budgets, estimates, invoices, recipes, conversions, homework. * EDIT ANYTHING, ANYTIME Type your whole calculation, then change any number on any line. Everything recalculates live. No more starting over. * BUILD ON YOUR WORK Reference earlier results in new lines. Chain calculations the way you actually think. * SAVE YOUR SHEETS Keep your calculations forever. Reopen a saved sheet anytime and keep editing. Your full history is one tap away. * FROM BASIC TO SCIENTIFIC Percentages, fractions, and everyday math — plus a full scientific keyboard: sin, cos, tan, log, ln, powers, roots, π, e, and variables (x, y, z) to solve real equations. * MAKE IT YOURS Beautiful built-in themes, or set your own photo as the background. A calculator that finally looks the way you want. * SHARE YOUR WORK Export any sheet as a clean, themed image — perfect for sharing a quote, a split bill, or a quick proof. Download MyCal and stop fighting your calculator. — — — MyCal requires a subscription or one-time purchase to unlock the full app. • Monthly subscription • Annual subscription (with a free trial) • Lifetime — one-time purchase Payment is charged to your Apple ID at purchase confirmation. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period; your account is charged within 24 hours prior to renewal. Manage or cancel anytime in your App Store account settings. Any unused free-trial period is forfeited when you purchase a subscription. Terms of Use (EULA): https://maoapps.com/mycal/terms Privacy Policy: https://maoapps.com/mycal/privacy
Formula
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Remember why you calculated it—not just the answer. Formula gives you an editable calculation with room for words, so you can check your thinking, change a number and use the result again. A CALCULATOR YOU CAN EDIT See the whole expression. Move the cursor, select, copy, paste or change any part without starting over. The result updates as you type. Use calculator buttons, your iPhone or iPad keyboard, or hide both to make room for the calculation. PUT WORDS NEXT TO YOUR NUMBERS Try: 3 coffees * 4 + 2 sandwiches * 7 The answer is 26. Ordinary words are comments, so you can remember what the numbers mean without putting the text in quotes. Comments appear smaller and gray; hide them when you want to focus on the math. SAVE ONCE. REUSE AND ADJUST. Give a calculation a name to save it as a formula. Reuse a price, a quantity or a whole calculation in another expression. Saved formulas appear as compact, tappable items: show the name or value, or hold to edit. Suggestions help you find existing formulas as you type. Change a saved formula and every calculation linked to it updates—including linked entries in history. Explore a different price or quantity, then use value history to restore an earlier version and recalculate the links again. KEEP YOUR REGULAR CALCULATIONS CLOSE Organize formulas into groups, choose icons, search your library and drag formulas between groups. Open a saved formula in the main editor to work on it directly; valid edits save automatically. Your draft returns when you reopen the app. FAMILIAR MATH, LESS FRICTION Use parentheses, powers, square roots and percentages. Write 2(3+4) instead of 2*(3+4). Keep seeing the current result while you add the next operation. With the Apple keyboard, you can also use its dictation feature where available. MADE FOR YOUR IPHONE AND IPAD Calculations work offline, without an account. Your draft, history and formula library are stored on your device; they do not sync between devices. Choose English, Russian, French or German in the app. Free, with no ads or in-app purchases. Questions or ideas? info@playflow.io
Screenshots
Verdict
The clearest difference is in-app purchases: Formula at none against MyCal's 3. Formula also leads on ads (none vs shown). MyCal's advantage is update cadence (every 4 days vs fortnightly) and iOS requirement (15.1 vs 17.0). On price 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. MyCal sells 3 in-app purchases, starting at $4.99 per month. Formula asks for nothing beyond the download.
MyCal ships an update every 4 days, Formula fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | MyCal | Formula |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Fortnightly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 49 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohammad Abu-Odeh | Rostislav Lyashko |
In-app purchases
MyCal
- Monthly$4.991 Month
- Annual7 Days trial$29.991 Year
- Lifetime$59.99
Formula
No in-app purchases








