Comparison

iStrip+ vs KatKalk

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

Head to head
About

iStrip+

Control smart light bars with unlimited color customization and dynamic effects like stroboscopic and breathing. Group multiple devices for a synchronized, colorful experience. Enjoy music synchronization for an immersive atmosphere.

Highlights
  • Unlimited light bar color customization
  • Stroboscopic and breathing effects
  • Group control for multiple devices
  • Music rhythm synchronization
  • Mobile and hardware microphone rhythm
Features
Read full description

Istrip is an intelligent light bar controller. Unlimited customization of light bar color you need. It provides rich and colorful stroboscopic, breathing and other effects. It can control multiple devices in groups and give you a colorful world. In addition, it also provides music rhythm effect, and mobile phone or hardware microphone rhythm. He can satisfy all your needs for lights and give you endless joy. Enjoy it! iStrip是一款智能灯条控制器。无限定制您所需要的灯条颜色。他提供丰富多彩的频闪、呼吸等效果。更能分组管控多个设备,给你一个五彩斑斓的世界。此外,还提供了音乐律动效果,和手机或硬件麦克风律动。他能满足你所有对灯的需要,给你无尽的欢乐。尽情享受吧!

About

KatKalk

Features
Read full description

KatKalk is a configurable position calculator designed for the fast entry of many individual values. Unlike a conventional calculator, KatKalk keeps every entered position visible. This makes calculations easy to follow, verify and correct—even during fast-paced work. KEY FEATURES • Add, subtract, multiply, divide and calculate percentages • Keep every entered position clearly visible • Add short notes to individual positions • Save and reopen multiple sessions locally • Copy or remove the latest position • Choose from ready-made calculator profiles • Customize the keypad, screen layout and visible controls • Export sessions as readable HTML reports • Print reports directly from a compatible browser • Export and import KatKalk session files • Use the core calculator without an internet connection • Follow shared sessions in read-only viewer mode BUILT FOR PRACTICAL WORK KatKalk is especially useful when many prices, products or other individual values must be entered quickly while the complete calculation remains traceable. Every accepted value becomes a separate position. You can review the complete list, identify corrections and keep short product names or other information next to the corresponding value. FLEXIBLE CALCULATOR PROFILES Choose a simple profile for everyday calculations or adapt KatKalk to your own workflow. Depending on the selected profile, you can customize: • The calculator keypad and its arrangement • Visible buttons and quick-access actions • Notes and audio controls • Position numbers and counters • The total and cumulative totals • Font sizes and screen areas • Calculation and percentage rules Profiles for simple calculations, notes, recordings, advanced controls and classic calculator operation are included. SESSIONS AND REPORTS Save different calculations as separate sessions and reopen them later. KatKalk keeps the individual positions and notes together with the session. Create a readable HTML report for browsers, smartphones and printing. You can also export a KatKalk session file and import it again to continue working with the calculation. LOCAL BY DEFAULT Calculations, notes and saved sessions remain on your device. KatKalk’s core calculator works fully offline. Optional online functions are clearly separated from local calculation. Shared sessions can be followed in read-only viewer mode without allowing viewers to alter the master calculation. KatKalk is not intended to replace accounting, invoicing or financial advisory software. It is a practical tool for fast, transparent and configurable position calculations.

Screenshots

iStrip+4 screens
KatKalk4 screens

Verdict

The call

The clearest difference is update cadence: KatKalk at every 9 days against iStrip+'s every 2 months. iStrip+'s advantage is iOS requirement (12.0 vs 15.0). On price, 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

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

UpkeepUpdate frequency

iStrip+ ships an update every 2 months, KatKalk every 9 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
iStrip+ versus KatKalk: the parameters behind the verdict, then further details
ParameteriStrip+KatKalk
PriceFreeFree
Rating2.8 (449 ratings) — better—
Positive reviews45.6% of reviews—
Number of ratings449 — better—
Update frequencyEvery 2 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size61 MB25 MB
Age rating4+4+
DeveloperShenzhen Heaton Technology Co., Ltd.Marcin Kilinski

Bugs and requests

iStrip+

Reported bugs

5 issues
  • Bluetooth connectivity issues
  • App doesn't detect LED lights
  • Lights won't turn on or off
  • Incorrect color display
  • Timer not working as expected

Requested features

6 requests
  • Add custom color options
  • Improve music sync feature
  • Add more animation effects
  • Improve timer functionality
  • Integrate with smart home platforms
Show 1 more
  • Add widget support

KatKalk

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iStrip+

No in-app purchases

None

KatKalk

No in-app purchases

Questions

Is iStrip+ free?
iStrip+ is free to download, with no in-app purchases.
Is KatKalk free?
KatKalk is free to download, with no in-app purchases.
Do iStrip+ or KatKalk have ads?
Neither iStrip+ nor KatKalk shows ads.
Which is updated more often, iStrip+ or KatKalk?
iStrip+ ships an update every 2 months, and KatKalk every 9 days. Most recently, iStrip+ was updated on November 7, 2026 and KatKalk on October 31, 2026.

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