Janus Calculator vs 5dmty
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Janus Calculator
This app offers a unique dual-calculator interface, supporting both standard and Reverse Polish Notation. It features programmable functions, extensive scientific and financial tools, and includes physical constants and an advanced option calculator.
- Dual calculator interface (Standard and RPN)
- Programmable functions
- Finance and scientific functions
- Physical constants
- Black-Scholes option calculator
- Implied value calculation
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Two-sided calculator. Side A uses Standard Notation, Side B uses Reverse Polish Notation. Both calculators are programmable, include various finance and scientific functions, and the values of 45 physical constants. Also includes a Black-Scholes option calculator, including calculation of implied values for each of the inputs.
5dmty
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5dmty is a church service management app designed to streamline attendance tracking, points management, and user roles for church servants. With an intuitive interface and seamless integration with Firestore, it enables easy organization and efficient communication within your church community. local encryption (S1/S2), optional 2FA (S3), and app lock plus a wipe on sign-out (S5).
Screenshots
Verdict
The clearest difference is update cadence: 5dmty at every 2 weeks against Janus Calculator's every 45 months. 5dmty also leads on iOS requirement (17 vs 26.2). 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. Neither carries in-app purchases, so what you see is what you pay.
Janus Calculator ships an update every 45 months, 5dmty every 2 weeks. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.
| Parameter | Janus Calculator | 5dmty |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 45 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 26.2 | 17 — better |
| Further details — not scored | ||
| Size | 1 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Geoffrey Domm | Mario Joseph |
In-app purchases
Janus Calculator
No in-app purchases
5dmty
No in-app purchases
