Comparison

I vs BPM Calc

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

Head to head
About

I

Features
Read full description

The I-Watcher™ is a compact, versatile cellular alarm unit that was designed for the motorcycle and vehicle market. I-Watcher™ offers online monitoring capabilities. It uses both cellular and satellite networks for real time data transmission from\to the Vehicle or Motorcycle. It enables on-line bi-directional communication with App. I-Watcher™ has several inputs that are connected to vehicle devices (i.e. vehicle battery, ignition switch, alarm system etc.) that trigger I-Watcher™ to generate event massages. Those messages could be sent via App. In addition, outgoing call is supported by I-Watcher™ in case of theft event. This feature provides another capability of informing clients about theft event occurrences. The following inputs are used to generate real time information by the unit: •Alarm/Pager •Ignition switch (ON/OFF status indication) •Vehicle battery (low power warning) •Vehicle doors (left unlocked while ignition is off) •Vehicle lights (left ON while ignition is off)

About

BPM Calc

Features
Read full description

Use tap-tempo to quickly find the BPM of a song and then use the timings to create lighting effects. Times are also displayed in timecode.

Screenshots

I1 screens
BPM Calc3 screens

Verdict

The call

The clearest difference is iOS requirement: I at 8.0 against BPM Calc's 15.2. On price, update cadence, ads and in-app purchases 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

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

UpkeepUpdate frequency

I ships an update every 4 months, BPM Calc every 5 months. The most recent releases landed on October 6, 2026 and September 27, 2026 respectively.

Scorecard1 real difference · 5 level
I versus BPM Calc: the parameters behind the verdict, then further details
ParameterIBPM Calc
PriceFreeFree
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.2
Further details — not scored
Size11 MB2 MB
Age rating4+4+
DeveloperSpetrotec LTDBev Fremin

In-app purchases

None

I

No in-app purchases

None

BPM Calc

No in-app purchases

Questions

Is I free?
I is free to download, with no in-app purchases.
Is BPM Calc free?
BPM Calc is free to download, with no in-app purchases.
Do I or BPM Calc have ads?
Neither I nor BPM Calc shows ads.
Which is updated more often, I or BPM Calc?
I ships an update every 4 months, and BPM Calc every 5 months. Most recently, I was updated on October 6, 2026 and BPM Calc on September 27, 2026.

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