Best Gap Diagnostic Apps

212+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated May 2026

Every iPhone needs a few good gap diagnostic apps. We benchmark 212+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Gap Diagnostic

IIDControl#1

IIDControl by GAP Innovation

Editor's Choice
🔧 Utilities
3.9(14 ratings)
Free
IIDControl screenshot 1
IIDControl screenshot 2
IIDControl screenshot 3
IIDControl screenshot 4
IIDControl screenshot 5

Control Land Rover diagnostic tools like IIDTool and EASControl via Bluetooth from your iPhone or iPad. Offers faster navigation, live data display, and fault listing with email transmission.

GAP Flasher#2

GAP Flasher by Gap Diagnostic

Strong Contender
🔧 Utilities
4.6(5 ratings)
Free
GAP Flasher screenshot 1

This utility app enables communication with specific hardware devices through a user-friendly Bluetooth interface. It simplifies device operation for users with compatible hardware.

CopiTrail#3

CopiTrail by Gap Diagnostic

Worth Considering
🔧 Utilities
1.0(1 ratings)
Free
CopiTrail screenshot 1
CopiTrail screenshot 2
CopiTrail screenshot 3

This navigation system and driving aid provides real-time vehicle data, including speed, fuel, and custom metrics like Boost and MAP sensor readings. It features a configurable map, group tracking, and day/night themes for enhanced off-road or high-speed adventures.

More Gap Diagnostic apps to explore

4
Carly — OBD2 car scanner
Carly — OBD2 car scanner
Carly — OBD2 car scanner
Diagnose, Code and Service
Free

This app allows car owners to diagnose issues, monitor live engine data, and perform maintenance tasks. It offers advanced features like coding hidden car functions and detecting mileage manipulation, helping users save on repairs and understand their vehicle's health.

Read and clear fault codes from all ECUsMonitor engine live data parametersStep-by-step car repair guides
📊 Productivity
(9.8K)
free with in-app purchases
5
Startech LM
Startech LM
Startech LM
by Gap Diagnostic
Free
🔧 Utilities
(0)
6
H&M
H&M
H&M
by H & M Hennes & Mauritz AB
Free

Discover the latest fashion, home, and beauty trends. This app offers intuitive shopping features like instant search, visual discovery, and order tracking. Save your favorites and get exclusive rewards with the membership program.

Instant search for itemsVisual style discoverySave favorite items
🛍️ Shopping
(231K)
free with in-app purchases
7
Abercrombie & Fitch
Abercrombie & Fitch
Abercrombie & Fitch
Shop Style & Fashion Apparel
Free

Discover the latest fashion trends for men, women, and kids. Earn rewards on purchases, get personalized style recommendations, and enjoy exclusive member benefits. Find new arrivals and explore styling tips.

Shop new arrivalsEarn rewards pointsPersonalized product recommendations
🛍️ Shopping
(315K)
free with in-app purchases
8
Hollister Co.
Hollister Co.
Hollister Co.
Shop With Us
Free

Discover comfortable, versatile clothing for any season. Get personalized recommendations, outfit inspiration, and exclusive rewards. Enjoy seamless shopping with features like buy online, pick up in-store, and easy payment options.

Hollister House Rewards programShareable wish listsOutfit inspiration and styling tips
🛍️ Shopping
(620K)
free with in-app purchases
9
adidas: Shop Shoes & Clothing
adidas: Shop Shoes & Clothing
adidas: Shop Shoes & Clothing
Discover Sneakers and Clothes
Free

Shop the latest fashion releases, sports apparel, and sneakers. Discover exclusive online deals, athlete inspiration, and app-exclusive content. Earn rewards and unlock benefits with the loyalty program.

Discover fashion releases and sneakersShop exclusive online dealsBrowse sports apparel for various activities
🛍️ Shopping
(789K)
free with in-app purchases
10
PULL&BEAR
PULL&BEAR
PULL&BEAR
Fashion for Women and Men
Free

Shop the latest fashion trends for women and men online. Discover new collections, create outfits, and find accessories to complete your look. Features include personalized recommendations and a unique video shopping experience.

Shop latest trends onlineDiscover new collectionsCreate outfits
🛍️ Shopping
(14K)
free with in-app purchases
11
Urban Outfitters
Urban Outfitters
Urban Outfitters
Shop for Clothes & Home Décor
Free

Discover the latest fashion, home decor, and lifestyle products from a unique retailer. Earn rewards, create wish lists, and explore curated trends and community inspiration. Shop new arrivals and exclusive collections with enhanced search and express checkout.

UO Rewards program for offers and prizesCreate and share up to 5 wish listsShop new arrivals and exclusive collections
🛍️ Shopping
(536K)
free with in-app purchases
12
ZARA
ZARA
ZARA
by Industria de Diseno Textil, S.A.
Free

Browse and shop the latest fashion collections for women, men, and kids. Discover new arrivals, save items to your favorites, track orders, and find nearby stores. Enhance your in-store shopping with special features.

Shop Woman, Man, and Kids collectionsView new collections and fashion campaignsSave items to favorites list
🛍️ Shopping
(413K)
free with in-app purchases
13
MANGO - Online fashion
MANGO - Online fashion
MANGO - Online fashion
Latest fashion trends
Free

Discover the latest fashion trends and shop for women's, men's, and children's clothing. Browse collections, get inspired by outfits, and use filters to find exactly what you're looking for. Access your saved shopping bag and wishlist from any device.

Latest fashion trendsWomen's, men's, children's clothingInspiration from proposed outfits
🛍️ Shopping
(55K)
free with in-app purchases
14
Stradivarius - Clothing Store
Stradivarius - Clothing Store
Stradivarius - Clothing Store
Online Fashion for Women 2025
Free

Explore the latest women's fashion trends and shop online with ease. Discover new arrivals, create wishlists, and find your nearest store. Stay updated with fashion news and order tracking.

Explore new arrivalsCreate wishlistsOne-click purchase
🛍️ Shopping
(6.9K)
free with in-app purchases
15
GAP Türkiye | Online Alışveriş
GAP Türkiye | Online Alışveriş
GAP Türkiye | Online Alışveriş
Sweatshirt, Jean, Spor Giyim
Free

Discover and shop for a wide range of clothing and accessories for women, men, and children. Easily find products with advanced filters, track orders, and earn loyalty points. Stay updated on the latest trends and exclusive offers.

Browse women's, men's, and kids' apparelAdvanced product filtering by category, size, color, and priceTrack orders and view purchase history
🛍️ Shopping
(5)
free
16
IID Customer Connect
IID Customer Connect
IID Customer Connect
by Smart Energy Systems LLC
Free

Manage your energy account with ease. View and pay bills, track your energy usage, schedule service changes, and stay informed about local outages. Access programs and services designed for customers.

View and pay billsMonitor energy usageSchedule service changes
💼 Business
(6K)
free
17
ThinkDiag+
ThinkDiag+
ThinkDiag+
by THINKCAR INC
Free

This app provides professional-level vehicle diagnostics, offering features like reading/clearing fault codes, data flow analysis, and special maintenance functions. It supports a wide range of car brands and allows users to subscribe to specific diagnostic software. Connects via Bluetooth to your smartphone for intelligent vehicle analysis.

OE-level diagnostic functionsFull OBD II diagnosisSpecial maintenance functions
🔧 Utilities
(4K)
free with in-app purchases
18
OBDeleven VAG
OBDeleven VAG
OBDeleven VAG
Scan your car & clear faults
Free

Transform your smartphone into a powerful car diagnostic tool. Easily scan, diagnose, and customize your vehicle's settings. Access advanced features like coding and live data to save time and money on car maintenance.

Advanced diagnosticsCoding and adaptationsOutput tests
🔧 Utilities
(6.6K)
free with in-app purchases
19
TOPDON CarPal
TOPDON CarPal
TOPDON CarPal
OBDII Diagnostic Scan Tool
Free

Transform your phone into a powerful car diagnostic tool with this app. It offers comprehensive system scans, full OBDII functionality, and specialized maintenance services for a wide range of vehicle brands. Easily identify issues, access repair data, and generate detailed reports wirelessly.

Full System DiagnosisFull OBD2 Functions6 Special Maintenance Functions
🔧 Utilities
(35)
free with in-app purchases
20
Ediag
Ediag
Ediag
by Shenzhen Kingbolen Electrics Technology Co., Ltd.
Free

Perform comprehensive vehicle diagnostics, including reading data flow, fault codes, and vehicle information. Generate professional diagnostic reports for major automobile manufacturers. Features one-key diagnosis and automatic VIN reading.

Full-function diagnosisRead data flowRead/clear fault code
🌟 Lifestyle
(905)
free