Calculator· vs TriGen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator·
A straightforward calculator app designed for simplicity and ease of use. It features large buttons and a clear display, supporting basic arithmetic operations like addition, subtraction, multiplication, and division.
- Large buttons
- Clear display
- Addition
- Subtraction
- Multiplication
- Division
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This is a super simple calculator with large buttons. It supports the operations you need: addition, subtraction, multiplication and division. Features: ◉ Retina display ◉ Big buttons ◉ A large display ◉ It supports adding, subtracting, multiplying, and dividing. ◉ Very useful and easy to use. Download this calculator today!
TriGen
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TriGen is a 64GByte USB thumb drive which is secured by quantum random number generation technology to protect external leakage of enterprise information. A micro quantum random number generator (QRNG) is deployed inside, and users must register personal information to use the memory of TriGen. When TriGen is installed into the user’s Laptop, QRNG generates random numbers as the authentication and delivers it to the registered user’s smart phone. After authentication, memory in TriGen will be activated and available. All activities such as copy, delete, modify, etc., will be monitored by the server. If user violates security policy, connection between the laptop and TriGen will be disconnected to prevent external information leakage.
Screenshots
Verdict
The clearest difference is in-app purchases: TriGen at none against Calculator·'s 1. TriGen also leads on ads (none vs shown) and update cadence (monthly vs every 8 months). 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. Calculator· sells 1 one-off in-app purchase. TriGen asks for nothing beyond the download.
Calculator· ships an update every 8 months, TriGen monthly. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | Calculator· | TriGen |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (220 ratings) — better | — |
| Positive reviews | 41.4% of reviews | — |
| Number of ratings | 220 — better | — |
| Update frequency | Every 8 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Netviking AB | EYL INC |
In-app purchases
Calculator·
- Ad Removal$0.99
TriGen
No in-app purchases
