(Not Boring) Calculator vs Gregor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
(Not Boring) Calculator
This app reimagines the everyday calculator with a fun, game-like interface and animations. It displays your full equation as you type, making it easy to spot and correct mistakes. Customizable skins and seasonal updates keep the experience fresh.
- Shows full equation as you type
- Editable equation for mistake correction
- 3D interface with game-inspired animations
- Built-in percentage calculations
- Large, readable numbers
- Customizable skins
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"Just astonishingly fun." — John Gruber A BETTER EVERYDAY CALCULATOR As a kid, I loved playing with a calculator. Somewhere along the way, the calculator became another boring tool. I want a calculator that reignites that same sense of wonder. SHOW YOUR WORK One of the biggest obstacles with most calculator apps is just how easy it is to make mistakes. If you mistype a number and don't catch it immediately, you can easily end up with the wrong answer and never know it. To fix this, we do what everyone is taught to do in elementary school… we show your work. As you type, the full equation is written out for you—every number and operator. Even better, if you make a mistake, you can now delete or select the number and retype it. Small, but life-changing. PLAYS LIKE A GAME, WORKS LIKE AN APP Next generation user interface designed and built in 3D with animation and sounds inspired by video games. % Percentages can be a challenge to wrap your head around, so we built it in. BIG & READABLE Big numbers that are easy to read at a glance when you're darting across screens. SKINS Skins change the whole look and feel of the app. New skins and collaborations every season so you can keep it fresh. SUPER!BORING Become a Super!Boring member and get all 5 Not Boring apps + skins + extras. We are 100% member-supported. No ads, no data gathering, no tracking. Just beautiful apps that make everyday life a little less boring. Plans: https://andy.works/plans Support: https://andy.works/support
Gregor
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Minimalist calendar-based notes and journaling app. Guiding principles: # Simplicity You pick a day on the calendar and add a note to that day. Basic usage is as simple as that. No clutter, no distractions, no ads. # Reliability Your notes are stored as plain markdown files in iCloud or on your own device. Edit them with your preferred apps, copy or sync them wherever you want, and keep access and control regardless of Gregor itself. # Polish Access information easily, edit markdown from a native UI, and use local AI features to easily search and summarize your notes.
Screenshots
Verdict
The clearest difference is update cadence: Gregor at weekly against (Not Boring) Calculator's monthly. Gregor also leads on iOS requirement (18.0 vs 26.0). 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. (Not Boring) Calculator sells 9 in-app purchases, starting at $7.99 per month and Gregor sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
(Not Boring) Calculator ships an update monthly, Gregor weekly. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.
| Parameter | (Not Boring) Calculator | Gregor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (4.1K ratings) — better | — |
| Positive reviews | 70.1% of reviews | — |
| Number of ratings | 4.1K — better | — |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.0 | 18.0 — better |
| Further details — not scored | ||
| Size | 138 MB | 11 MB |
| Age rating | 4+ | +4 |
| Developer | Not Boring Software LLC | Daniel Marques |
Bugs and requests
(Not Boring) Calculator
Reported bugs
2 issues- Crashes when switching between apps
- Freezing on certain devices
Requested features
4 requests- Scientific calculator functions
- Calculation history
- Widgets and control center integration
- One-time purchase option
Gregor
Not enough reviews yet to summarise bugs or requests.
In-app purchases
(Not Boring) Calculator
- Super !Boring Monthly$7.991 Month
- Super !Boring Yearly2 variants$29.991 Year
- Chroma Skin$4.99
- Monsters Skin$4.99
- Opal Skin$9.99
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- Presstube Skin$9.99
- Karat Skin$9.99
- Cedar Skin$9.99
- !Calculator Plus Lifetime$14.99
Gregor
- Small Tip$2.99
- Medium Tip$4.99
- Large Tip$9.99
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- Lifetime Supporter$24.99









