EchoFrame vs Napoleon/Lynx Spring Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EchoFrame
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EchoFrame allows you to place a widget with custom text on your homescreen or lockscreen. All widget settings are seamlessly synced via iCloud across all your devices
Napoleon/Lynx Spring Calc
This utility app simplifies garage door torsion spring calculations for single and duplex assemblies. It supports various lift types and drums, allowing users to save and share their calculations. Connect with local sales representatives for parts and assistance.
- Calculates torsion springs for single/duplex assemblies
- Supports various lift types and drums
- Save calculations locally
- Share calculations with other apps
- Direct contact for sales representatives
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Simplify garage door torsion spring calculations with us. Our app supports single and duplex assemblies and accommodates various lift types. Save your calculations locally or easily share them with others. Need parts or assistance? Connect directly with a local sales representative at Napoleon/Lynx, a global leader and one-stop source for garage door manufacturing and distribution. Key Features: - Calculates torsion springs for single and duplex assemblies. - Supports standard, high, and vertical lifts and various drums. - Save calculations locally and share with other apps. - Contact us directly for sales by region.
Screenshots
Verdict
The clearest difference is update cadence: EchoFrame at every 3 days against Napoleon/Lynx Spring Calc's every 7 months. Napoleon/Lynx Spring Calc's advantage is iOS requirement (15.1 vs 17.2). 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.
EchoFrame ships an update every 3 days, Napoleon/Lynx Spring Calc every 7 months. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.
| Parameter | EchoFrame | Napoleon/Lynx Spring Calc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Stepan Pazderka | Napoleon Spring Works |
In-app purchases
EchoFrame
No in-app purchases
Napoleon/Lynx Spring Calc
No in-app purchases
Questions
Is EchoFrame free?
Is Napoleon/Lynx Spring Calc free?
Do EchoFrame or Napoleon/Lynx Spring Calc have ads?
Which is updated more often, EchoFrame or Napoleon/Lynx Spring Calc?
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