Calcbot 2 vs NotiHub.io
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calcbot 2
This app offers a smart calculator with a history tape and expression view to track your calculations. It includes over 500 unit conversions and scientific functions, with an Apple Watch extension for on-the-go use.
- History tape for saved calculations
- Expression view for typed input
- Over 500 unit conversions
- Apple Watch extension
- Scientific functions in landscape
- Favorites for instant access
Read full descriptionHide full description
Calcbot is an intelligent calculator and unit converter for the rest of us. Featuring an easy-to-read history tape, expression view, intuitive conversion, and much more! History Tape*. Every calculation you enter gets saved to the history tape. Refer to calculations later or send them right back to your current calculation. Expression View. Calcbot's original expression view allows you to see everything you have typed so you'll never forget what you entered or miss a typo. Apple Watch Extension. Perform basic calculations, conversions, calculate tips, and split bills right from your Apple Watch. Conversion*. Convert any of your calculations with over 500 units across 22 different categories including auto-updating currency rates. Favorites. Fave a calculation and get instant access to its result via the Favorites Key. No more cryptic memory keys. Scientific Functions. Rotate your device into landscape mode to gain access to common scientific functions. Constants. Get instant access to scientific constants like Pi, Atomic Mass, or add your own*. Round for Currency. Have all of your results rounded to two decimal places. Sounds & Animations. Beautiful custom animations and sound effects provide positive feedback and an enjoyable experience while performing calculations. * In-App purchase required.
NotiHub.io
Read full descriptionHide full description
Introducing NotiHub, the ultimate notification subscription app that keeps you effortlessly informed about the latest updates from your favorite entities. Subscribe to news outlets, social media profiles, blogs, and more, and receive personalized notifications tailored to your interests. With advanced filtering options, you can refine your notifications based on keywords or topics, ensuring that you only receive updates that matter to you. NotiHub delivers real-time alerts straight to your device, allowing you to stay connected and up-to-date with breaking news and trending topics. Access all your notifications in one centralized hub, whether you're on your mobile device or desktop computer. Stay connected, stay informed with NotiHub.
Screenshots
Verdict
The clearest difference is in-app purchases: NotiHub.io at none against Calcbot 2's 1. NotiHub.io also leads on update cadence (every 2 weeks vs every 2 months). Calcbot 2's advantage is device support (4 vs 2). On price, ads and iOS requirement 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. Calcbot 2 sells 1 one-off in-app purchase. NotiHub.io asks for nothing beyond the download.
Calcbot 2 ships an update every 2 months, NotiHub.io every 2 weeks. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.
| Parameter | Calcbot 2 | NotiHub.io |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (11K ratings) — better | — |
| Positive reviews | 60.1% of reviews | — |
| Number of ratings | 11K — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 16 MB | 20 MB |
| Age rating | 4+ | 17+ |
| Developer | Tapbots | Abdi Mohamud |
Bugs and requests
Calcbot 2
Reported bugs
4 issues- History tape not recording all calculations
- Conversion settings not syncing to Apple Watch
- App crashing on launch for some users
- Blank app icons after iOS updates
Requested features
5 requests- Dark mode option
- Widgets for quick access
- More currency and unit conversions
- Improved Apple Watch integration
- Ability to edit calculations in history tape
NotiHub.io
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calcbot 2
- Calcbot Pro$1.99
NotiHub.io
No in-app purchases
Questions
Is Calcbot 2 free?
Is NotiHub.io free?
Do Calcbot 2 or NotiHub.io have ads?
Which is updated more often, Calcbot 2 or NotiHub.io?
Other comparisons















