Comparison

Instant GSM vs Atmosic DevTools

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

Head to head
About

Instant GSM

Features
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Instant GSM socket advantages: β€’ The Instant GSM socket has both a built-in SIM card (chip) and a GSM Internet service β€’ The GSM Internet service fee is included in the price of the device for 5 years β€’ No need to sign a subscription contract and be tied to it for several years β€’ No other external permissions or devices need to be connected β€’ Installation of the GSM socket doesn’t require any expertise β€’ Can be installed by anyone in less than 1 min β€’ Portable, since the communication service of the device is not fixed β€’ Operates in more than 90 countries β€’ The Internet application can be controlled from any smartphone β€’ The app allows you to control multiple sockets simultaneously Instant GSM socket areas of application: β€’ For remote control of film tent technical equipment o to control power to irrigation pumps o to control power to electric heating panels o to control power to ventilation fans β€’ Start your tractor heater remotely o timed switching o adhoc switching β€’ Switch outdoor saunas on or off β€’ Control Christmas lights remotely β€’ Remote control of electrical equipment in your holiday home/summer house o to control a submersible pump or sprinkler o for timed or ad hoc control of heating or cooling o to switch outdoor lighting on or off β€’ To unplug the iron β€’ To turn on the washing machine β€’ To turn off drinks coolers β€’ To disconnect illuminated billboards and information terminals β€’ To monitor the temperature of cold stores Technical parameters: GSM modem: 2G Bluetooth: 4.0 Input voltage: 230V/50Hz Technical features: Built-in SIM card (chip) Temperature controlled switching Manual switching Timed switching Delayed switching Regular temperature measurement Send alerts Simultaneous control of several sockets Event Log of operation (Cloud Server) Load capacity: 16A

About

Atmosic DevTools

Features
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Demo interacting with Atmosic Bluetooth LE devices. - Monitor the sensor data (temperature/humidity/gravity vectors) - Config the device by AT Command - Upgrade by OTA

Screenshots

Instant GSM3 screens
Atmosic DevTools1 screens

Verdict

The call

Instant GSM and Atmosic DevTools are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 27, 2026 and October 4, 2026 respectively.

ScorecardNo meaningful differences
Instant GSM versus Atmosic DevTools: the parameters behind the verdict, then further details
ParameterInstant GSMAtmosic DevTools
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.114.5 β€” better
Further details β€” not scored
Size38 MB7 MB
Age rating4+4+
DeveloperMOHAnet ZrtAtmosic Technologies, Inc.

In-app purchases

None

Instant GSM

No in-app purchases

None

Atmosic DevTools

No in-app purchases

Questions

Is Instant GSM free?
Instant GSM is free to download, with no in-app purchases.
Is Atmosic DevTools free?
Atmosic DevTools is free to download, with no in-app purchases.
Do Instant GSM or Atmosic DevTools have ads?
Neither Instant GSM nor Atmosic DevTools shows ads.
Which is updated more often, Instant GSM or Atmosic DevTools?
Instant GSM ships an update every 2 months, and Atmosic DevTools every 2 months. Most recently, Instant GSM was updated on October 27, 2026 and Atmosic DevTools on October 4, 2026.

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