Comparison

M2 vs clock4all

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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"

About

clock4all

Features
Read 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

M23 screens
clock4all4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

M2 is free to download; clock4all costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 6 level
M2 versus clock4all: the parameters behind the verdict, then further details
ParameterM2clock4all
PriceFree — better$0.99
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 68 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better12.0
Further details — not scored
Size6 MB8 MB
Age rating4+4+
Developer剑 熊Juergen Held

In-app purchases

None

M2

No in-app purchases

None

clock4all

No in-app purchases

Questions

Is M2 free?
M2 is free to download, with no in-app purchases.
Is clock4all free?
clock4all costs $0.99, with no in-app purchases.
Do M2 or clock4all have ads?
Neither M2 nor clock4all shows ads.
Which is updated more often, M2 or clock4all?
M2 ships an update every 68 months, and clock4all every 7 months. Most recently, M2 was updated on October 1, 2026 and clock4all on September 12, 2026.

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