QuickTip vs RainbowCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QuickTip
Quickly calculate tips with this fast and lightweight application. It's optimized for restaurants with an app clip, allowing customers to scan a QR code or NFC tag to calculate their tip instantly.
- Fast tip calculation
- Lightweight design
- Restaurant app clip
- QR code integration
- NFC tag integration
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Want to get a tip quickly! This is the way! Introducing QuickTip, a fast, lightweight tip app that will allow you to calculate a tip with lightning speed! Plus, it includes an app clip optimized for restaurants! If you own a restaurant, just get a qr code or nfc tag that points to qktp.in and leave it on your checkstand or in your check folio. Now, your customers can scan the tab, calculate their tip, and be on their way in seconds! Quick Tip Calculator! Never Get the tip wrong again!
RainbowCalc
This calculator app offers extensive customization with a wide color picker for backgrounds and keys, enhancing usability and accessibility. It includes a calculation history with sharing options and supports basic arithmetic, percentages, and square roots.
- Customizable background and key colors
- Advanced color picker
- Calculation history
- Share calculations
- Basic operations
- Percentage calculations
- Square root calculations
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It has large numbers for easy visualization and better usability and accessibility! Easy to use and with easily readable characters! With this customizable calculator, it is possible to change the background and numeric key colors to the ones you like the most, bringing more visual comfort to the user. Thanks to the advanced color picker, you can choose any color! Combine colors with your phone case or device color, stand out with your unique customization. No more limited themes and colors chosen for you! Choose your favorite theme yourself. It also features a history of all calculations, where you can delete them individually or all at once, and the ability to share a calculation via messaging apps. Download this great, lightweight, beautiful, and personalized calculator for free now. • All colors are possible! • Combine colors with your style. • Calculation history and sharing. • Basic operations. • Percentage calculations. • Square root calculations.
Screenshots
Verdict
The clearest difference is rating: QuickTip at 5.0 against RainbowCalc's 3.5. QuickTip also leads on ads (none vs shown) and update cadence (every 2 days vs fortnightly). On price, ratings volume, 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.
QuickTip holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
QuickTip ships an update every 2 days, RainbowCalc fortnightly. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | QuickTip | RainbowCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.5 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 2 days — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 4 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | AndEtc, Inc. | Andre Silva |
In-app purchases
QuickTip
No in-app purchases
RainbowCalc
No in-app purchases
