Comparison

ImmoBase vs Key Defender

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

Head to head
About

ImmoBase

Features
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ImmoBase Your go-to automotive locksmith reference app - built for professionals and continuously updated. With an ImmoBase subscription, you get direct access to our growing vehicle and parts databases without waiting for traditional app updates. New vehicle coverage, parts, programming information and other database improvements can become available as they are added. What makes ImmoBase tick: Vehicle Programming Reference: * Access vehicle-specific information for Add Key, All Keys Lost, Remote Learning, Tips & Tricks, and more where available. Powerful Parts Database: * Search across 1,800+ parts and growing by, part number, FCC, make, model, year, or button combination. Browse smart keys, remote head keys, flip keys, fobs, transponder keys, and more with available fitments, OEM part numbers, and other relevant specifications. Unique C.I.D. Lookup: * Each supported part includes its own C.I.D. identifier, making it easier to cross-reference parts with your inventory and move between vehicle and parts information. VIN Decoder: * Decode a VIN and continue directly into Vehicle Search with the year, make, and model carried over automatically. Connected Vehicle-to-Parts Search: * Move directly from Vehicle Details into Part Search to quickly narrow down compatible parts for the selected vehicle. Recent Lookup History: * Quickly return to previously viewed vehicles, VINs, and parts without starting your search over. Built-in Notes & Feedback: * Save your own notes and submit corrections, suggestions, or additional information directly through the app. Protected Subscriber Access: * Device binding helps protect professional subscriber access, while built-in expiration reminders help you stay aware of upcoming renewals. Hassle-Free Onboarding: * Apply for professional access, upload verification documents, track your application status, choose a subscription plan, and complete activation directly through the app. Whether you're identifying a key, checking programming requirements, cross-referencing a part number, or preparing for an unfamiliar vehicle, ImmoBase puts useful automotive locksmith information in one place. ImmoBase is primarily focused on USA vehicle and parts coverage. Information for other regions may be available where supported. Stay prepared for the next job with ImmoBase.

About

Key Defender

Features
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A remote‑control signal jammer that blocks various remote‑control data signals

Screenshots

ImmoBase4 screens
Key Defender4 screens

Verdict

The call

ImmoBase and Key Defender are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
ImmoBase versus Key Defender: the parameters behind the verdict, then further details
ParameterImmoBaseKey Defender
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size53 MB88 MB
Age rating4+4+
DeveloperRonald PersaudShenzhen Ecartek Technology, Ltd.

In-app purchases

None

ImmoBase

No in-app purchases

None

Key Defender

No in-app purchases

Questions

Is ImmoBase free?
ImmoBase is free to download, with no in-app purchases.
Is Key Defender free?
Key Defender is free to download, with no in-app purchases.
Do ImmoBase or Key Defender have ads?
Neither ImmoBase nor Key Defender shows ads.
Which is updated more often, ImmoBase or Key Defender?
ImmoBase ships an update every 2 months, and Key Defender every 2 months. Most recently, ImmoBase was updated on October 30, 2026 and Key Defender on October 31, 2026.

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