M2 vs clock4all
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
M2
This application allows remote control of a smart alarm system. It features a touch keypad, dual network capabilities, and zone management for enhanced home security.
- Remote control for alarm system
- Capacitive touch keypad
- GSM & PSTN dual network
- 128x64 lattice LCD screen
- Wired and wireless defense zones
- Supports multiple remote controls
- Voice message recording
Read full descriptionHide full description
This APP can help you remotely control Wolf-Guard M2 GSM&PSTN double network smart Alarm System. Help you protect your housing! M2 specifications: -Elegant and advanced capacitive touch keypad for easy operation; -GSM quad-band and PSTN dual network alarm system; -128x64 lattice LCD screen with clock display; display language can be changed per customer’s request; -2 wired and 10 wireless defense zones; each wireless zone supports maximum 10 sensors; -Support maximum 8 remote controls; -One relay switch (250V AC/ 10A); -Can preset 10 alarm phone numbers; -3 SMS number: each number can choose alarm SMS, sensor low power alert, main panel external power cut, arm/ disarm alert, telephone line cut, main panel tamper alert; -10-second voice message recording; -Compatible with Contact ID: upload alarm information to the alarm monitoring center. -Timely arm and disarm; Wolf-Guard from China, since year 1998, for the global security market. Wolf-Guard provide all kinds of DIY home security products. Wolf-Guard "All For Your Security"
clock4all
Read full descriptionHide full description
This is a clock for all: - for users aiming visual pleasing clock faces - for visual impaired users reading the time with better contrasts - for blind users hearing the speech synthesizer time message in their language - for children learning to read the clock - for children and adults having fun to select a clock’s face with random colors - for all users preferring apps easy to use and designed for all Thus it is a powerful clock in the sense of: „Technology is most powerful when it empowers everyone“ (cited from www.apple.com/accessibility). The clock4all app provides 10 different clock faces. And one extra large digital time display. Alarm time can be set. The clock indicates low battery levels with a color index. Your questions may be: 1. Must I fumble with menus, settings and modes? No. This clock app is designed for simple and robust use. You will not have to make settings in menus. There are no menus, no buttons, no sliders. Because blind, partly sighed or elderly users can hardly deal with them. 2. How does it work then, to interact with this app? There are only three interactions: - You touch the display and a voice will speak out the time in your language. - You swipe over the display and the clock face will change its design. - You shake the device and a prompt appear to set the alarm time. 3. How do the app know about the language I prefer? The app simply uses the selected language of your iPad or iPhone. 4. Can I hear the voice speaking out the time in different languages? Just go to your general iPad/iPhone settings of „Language & Region“ and change the language and its region. 5. Which languages/nations are supported by this app? USA/England, Spain, French, Italy, Germany, Netherlands, Ireland, Czech Republic, Hungary, China. Japan, Korea. 6. My language is not supported yet. Do you plan to update for it? Yes, of course, it is a clock4all. Get in contact with the author: juergen.held@hfg-gmuend.de Explain how to spell the time in your language for to update the app. 7. Does the clock4all app supports different display sizes? Yes all displays are supported. The clock’s faces will be presented at best readable sizes. 8. Can I use the clock4all in portrait and landscape orientation? Yes, the clock will rotate if you rotate your iPad or iPhone device. 9. How will the clock tell about low battery levels? Less 10% battery capacity will trigger the clocks face to have blue colored markers. Less 5% battery and the markers became red colored. If you tap then to hear the time message, the voice will append: "Battery level is less x%".
Screenshots
Verdict
The clearest difference is price: M2 at Free against clock4all's $0.99. M2 also leads on iOS requirement (10.0 vs 12.0). clock4all's advantage is update cadence (every 7 months vs every 68 months). On 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
M2 is free to download; clock4all costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
M2 ships an update every 68 months, clock4all every 7 months. The most recent releases landed on October 1, 2026 and September 12, 2026 respectively.
| Parameter | M2 | clock4all |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 68 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 6 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | 剑 熊 | Juergen Held |
In-app purchases
M2
No in-app purchases
clock4all
No in-app purchases









