Comparison

Plier vs UniSum

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

Head to head
About

Plier

Transform your iPhone into an AI-powered car diagnostic tool. Connect to your vehicle via an OBD2 device to understand its health, diagnose issues, and estimate repair costs.

Highlights
  • AI-driven diagnostic reports
  • Real-time OBD2 data and graphs
  • Check engine light insights
  • Repair cost estimation
  • ELM327 Bluetooth compatibility
  • Troubleshoot engine codes
Read full description

Turn your iPhone into a clear, capable OBD2 car scanner with Plier.AI. Connect a compatible Bluetooth ELM327 adapter to read diagnostic trouble codes, view live sensor data and graphs, and understand check-engine warnings. The new Vehicle Health Center brings together a health snapshot, mileage-based maintenance planning, official NHTSA recall checks for saved vehicles, inspection-readiness guidance, and a report you can share with a mechanic. Ask the AI Mechanic vehicle-aware questions about symptoms and active codes. Plier suggests practical tests, explains possible causes, and helps you decide what to check before replacing parts. You can also review supported freeze-frame and oxygen-sensor test data. Available data varies by vehicle, adapter, protocol, and model year. AI guidance and health scores can be wrong and are not proof that a vehicle is safe. Confirm safety-critical findings with a qualified technician. Some features require Plier Pro. Terms of Use: https://plier.ai/tos

About

UniSum

Features
Read full description

UniSum, öğrenciler için geliştirilmiş bir not ve ders takip uygulamasıdır. Derslerinizi yönetin, notlarınızı düzenleyin ve dönem ortalamanızı hesaplayın. Kullanıcı dostu arayüzüyle akademik başarınızı kolayca takip edin.

Screenshots

Plier4 screens
UniSum4 screens

Verdict

The call

The clearest difference is in-app purchases: UniSum at none against Plier's 2. Plier's advantage is update cadence (weekly vs every 2 months) and iOS requirement (15.0 vs 18.2). On price, ads 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. Plier sells 2 in-app purchases, starting at $6.99 per 7 days. UniSum asks for nothing beyond the download.

UpkeepUpdate frequency

Plier ships an update weekly, UniSum every 2 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Plier versus UniSum: the parameters behind the verdict, then further details
ParameterPlierUniSum
PriceFreeFree
Rating4.6 (15 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings15 — better—
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.2
Further details — not scored
Size54 MB5 MB
Age rating4+4+
DeveloperHeap Labs LLCOmer Yasir Onal

In-app purchases

2 purchases

Plier

Subscriptions2
  • Pro (Weekly)3 Days trial$6.997 Days
  • Pro ( 1 Year )$49.991 Year
None

UniSum

No in-app purchases

Questions

Is Plier free?
Plier is free to download, with in-app purchases available.
Is UniSum free?
UniSum is free to download, with no in-app purchases.
Do Plier or UniSum have ads?
Neither Plier nor UniSum shows ads.
Which is updated more often, Plier or UniSum?
Plier ships an update weekly, and UniSum every 2 months. Most recently, Plier was updated on November 4, 2026 and UniSum on October 30, 2026.

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