Molnus vs Stair Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Molnus
Control and manage compatible cameras and their associated SIM cards. Receive instant notifications for events like image uploads and battery status, with secure cloud storage for your photos.
- Remote camera settings control
- MolnusSIM card management
- Event notifications (image upload, battery)
- Secure cloud storage
- Wildlife detection
- Photo gallery
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Manage all your Molnus-compatible cameras with full control over settings as well as managing your MolnusSIM Simcards. Get notifications for camera events like image-upload and battery-status. Features: - Free 30 day storage. - Share cameras with friends, either in app or via e-mail. - Control all your camera settings directly from Molnus. - Control your camera from browser or app. - Manage MolnusSIM Sim cards, keep track of all data used by your cameras, manage sim card and the cameras they're used in in one and the same place. - Secure upload and cloud storage. - AI powered wildlife Push notification to both browser and app. - Photo gallery for easy management of photos. - Get push-notifications when pictures are uploaded. - Take photos direct browser or app with swift delivery. - Register new cameras from browser or app. - Wildlife detection, Molnus will help you detect and identify wildlife captured in your images and video.
Stair Calculator
This app calculates essential parameters for stair construction, offering flexibility in input and providing multiple step set options. It supports various units and allows results to be easily copied.
- Calculate stair construction parameters
- Flexible input for Run or Total Run
- Determine largest and smallest step sets
- Support for various units
- Copy results to clipboard
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Stair Calculator helps you calculate and compare staircase dimensions. FEATURES • Calculate using Run, Total Run, or Stair Angle • Enter a specific number of Runs or explore all calculated options • Support Metric and Imperial units • View detailed measurements and stair diagrams • Export results as a PDF or image • Copy results to the clipboard IMPORTANT Results are generated based on user-provided values and general calculation models. The app is intended for reference and educational purposes only. Please verify all measurements, local building requirements, and safety standards before actual construction. SUBSCRIPTION This subscription package offers unlimited access to all app features throughout the subscription period. • Payment will be charged to your Apple Account at confirmation of purchase. • The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your Apple Account will be charged for renewal within 24 hours before the end of the current period, and the renewal cost will be identified. • Subscriptions may be managed and auto-renewal may be turned off in your Apple Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. PRIVACY POLICY https://13520178.github.io/StairCalc/policy.html TERMS OF USE https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ CONTACT If you have any questions or suggestions, please contact us. Email: phannhatd@gmail.com
Screenshots
Verdict
The clearest difference is update cadence: Molnus at fortnightly against Stair Calculator's every 3 months. Molnus also leads on monetization model (free vs free with in-app purchases) and iOS requirement (13.0 vs 15.0). Stair Calculator's advantage is review sentiment (21% vs 13%). 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. Molnus sells 3 one-off in-app purchases and Stair Calculator sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.
Molnus ships an update fortnightly, Stair Calculator every 3 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.
| Parameter | Molnus | Stair Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.1 (738 ratings) — better |
| Positive reviews | 12.5% of reviews | 21.4% of reviews — better |
| Number of ratings | — | 738 — better |
| Update frequency | Fortnightly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 12 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | HJL IT & Development | Phan Nhat Đang |
Customer experience
Molnus
Stair Calculator
Bugs and requests
Molnus
Not enough reviews yet to summarise bugs or requests.
Stair Calculator
Reported bugs
2 issues- Subscription numbers don't add up
- Doesn't provide promised features after purchase
Requested features
3 requests- Option to uninstall app
- Ability to calculate run based on rise and landing space
- Provide more detailed diagrams and visuals
In-app purchases
Molnus
- 100 Molnus Credits$3.99
- 200 Molnus Credits$7.99
- 500 Molnus Credits$19.99
Stair Calculator
- Annual Premium Package7 Days trial$9.991 Year
- Unlock all features$5.99
Questions
Is Molnus free?
Is Stair Calculator free?
Do Molnus or Stair Calculator have ads?
Which is updated more often, Molnus or Stair Calculator?
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