Calculus doodlus vs Tapadito
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculus doodlus
This app offers a multi-page calculator with automatic saving and advanced functions like percentage and VAT calculation. It uniquely presents calculations in an interactive, handwritten style that can be customized with your own script.
- Multi-page interface
- Automatic work saving
- Percentage calculation
- VAT calculation
- Customizable handwriting style
- Interactive calculation pages
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Calculus doodlus keeps your calculations visible, line by line. Read them back, continue where you left off, or go back and change any number. • Edit, copy & link Touch and hold any number to edit it. Tap a line to reuse its value, or double-tap to link it to another calculation and keep the values in sync. • Percentages & VAT Calculate percentages or deduct VAT with ease. The calculation remains visible, so you can see exactly how the result was obtained. • Keep your calculations Your pages are saved automatically. Keep recent calculations, pin important ones, rename and share them, and switch between pages with a swipe. • Big numbers, exact results Every operation is performed digit by digit, the same way you learned in school. That's how Calculus doodlus handles very large numbers while keeping exact results on the page. • Make it your own Customize the keyboard color and replace its digits with your own handwriting. Add Calculus doodlus to your Lock Screen or Control Center for one-tap access. 4.8 stars from more than 10,000 ratings Every 2 seconds, someone somewhere in the world starts a new calculation page. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Tapadito
Protect your personal phone number by using a temporary, disposable number for communication. Ideal for real estate agents or online dating, it allows you to stay in touch without revealing your private contact details.
- Disposable phone numbers
- Private communication
- Number masking
- Temporary contact
- Secure messaging
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Today our personal phone number is a very delicate thing to simply give to anyone. For this reason, people who work in real estate or a girl who has just met a boy on the Internet, are a little afraid to give their personal phone number to someone they have just met. Now with Tapadito, that fear has passed into the past! Now, with Tapadito you can keep in touch with someone without having to give them your personal phone number.
Screenshots
Verdict
The clearest difference is rating: Calculus doodlus at 4.8 against Tapadito's 3.4. Calculus doodlus also leads on ratings volume (584 vs 5). Tapadito's advantage is in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 6 weeks). On price, ads 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. Calculus doodlus sells 1 in-app purchase, starting at $4.99 per year. Tapadito asks for nothing beyond the download.
Calculus doodlus holds the better App Store score, 4.8 against 3.4. That said, the two scores are not equally well evidenced: Calculus doodlus has 584 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 82% of Calculus doodlus's written reviews are positive against 100% of Tapadito's, so the app with the better star average is not the one people write more warmly about.
Calculus doodlus ships an update every 6 weeks, Tapadito every 2 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Calculus doodlus | Tapadito |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (584 ratings) — better | 3.4 (5 ratings) |
| Positive reviews | 81.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 584 — better | 5 |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Stéphan Barbé | Remwes, LLC |
Customer experience
Calculus doodlus
Tapadito
Bugs and requests
Calculus doodlus
Reported bugs
3 issues- Calculation results not displaying correctly
- App crashing on launch for some users
- Handwritten numbers not registering properly
Requested features
5 requests- Add ability to edit/delete individual calculations
- Implement a dark mode option
- Include more advanced math functions
- Allow copying/pasting of individual numbers
- Improve multitasking support
Tapadito
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculus doodlus
- Remove Ads$4.991 Year
Tapadito
No in-app purchases
Questions
Is Calculus doodlus free?
Is Tapadito free?
Which has better reviews, Calculus doodlus or Tapadito?
Do Calculus doodlus or Tapadito have ads?
Which is updated more often, Calculus doodlus or Tapadito?
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