Comparison

SSIR vs iTherm

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

Head to head
About

SSIR

Features
Read full description

SSIR is connected to the rapid diagnosis instrument through the mobile phone WIFI, and can be used to quickly view the thermal imaging effect of the faulty PCBA with one click. It also supports frame temperature measurement, snapshot, switching pseudo-color and other functions to help users quickly locate the fault position of the motherboard.

About

iTherm

Features
Read full description

This is a plug-and-play professional thermal imaging tool. Paired with a Type-C thermal camera, it instantly turns your phone into a thermal imager. The app features a clean, intuitive interface with zero learning curve. Real-time Infrared Imaging: Plug in and start immediately. Multiple built-in color palettes (Iron Red, Cool Color, High Contrast, etc.) help you clearly identify temperature distribution and hot spots from different perspectives. Precise Temperature Measurement: Supports spot/line temperature measurement, area temperature measurement, and automatic high/low temperature tracking, with real-time temperature readings displayed on screen. One-Tap Snapshot: Spot an abnormal temperature point? Just tap to save an infrared image that retains full temperature data for later analysis and comparison. HD Video Recording: Supports infrared video recording to dynamically capture temperature changes over timeβ€”ideal for equipment inspection, outdoor exploration, or electrical maintenance scenarios.

Screenshots

SSIR3 screens
iTherm4 screens

Verdict

The call

The clearest difference is update cadence: SSIR at every 5 days against iTherm's every 6 weeks. SSIR also leads on iOS requirement (11.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SSIR ships an update every 5 days, iTherm every 6 weeks. The most recent releases landed on September 11, 2026 and September 19, 2026 respectively.

Scorecard2 real differences Β· 4 level
SSIR versus iTherm: the parameters behind the verdict, then further details
ParameterSSIRiTherm
PriceFreeFree
Update frequencyEvery 5 days β€” betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.0 β€” better14.0
Further details β€” not scored
Size11 MB28 MB
Age rating4+4+
DeveloperGuangzhou Xinxun Chuangtou Technology Co., Ltd.Guangdong Laureii Intelligent Technology Co.,Ltd

In-app purchases

None

SSIR

No in-app purchases

None

iTherm

No in-app purchases

Questions

Is SSIR free?
SSIR is free to download, with no in-app purchases.
Is iTherm free?
iTherm is free to download, with no in-app purchases.
Do SSIR or iTherm have ads?
Neither SSIR nor iTherm shows ads.
Which is updated more often, SSIR or iTherm?
SSIR ships an update every 5 days, and iTherm every 6 weeks. Most recently, SSIR was updated on September 11, 2026 and iTherm on September 19, 2026.

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