Comparison

Simplimmat vs TrustMe

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

Head to head
About

Simplimmat

This official government app streamlines the process of buying and selling used vehicles. It allows both parties to securely complete the vehicle transfer declaration digitally, eliminating the need for paper forms. Buyers can also immediately order a new registration certificate.

Highlights
  • Digital vehicle transfer declaration
  • Secure and dematerialized process
  • Immediate provisional registration certificate
  • View and download vehicle documents
  • Supports specific vehicle types (VP, TM, QM, etc.)
  • Add co-owners to vehicle file
Features
Read full description

Simplimmat est l’application officielle de l’Etat pour simplifier les démarches administratives des particuliers qui revendent ou rachètent un véhicule d’occasion. Le vendeur et l’acheteur réalisent ensemble la déclaration de cession, la procédure est totalement sécurisée et dématérialisée (il n’est pas nécessaire de remplir un CERFA papier). L’acheteur peut commander sa nouvelle carte grise dans la foulée et obtenir immédiatement son certificat provisoire d’immatriculation. L'application prend en charge uniquement les véhicules immatriculés au nouveau format (AA-123-AA) et les véhicules de type VP, TM, QM, CL, CYCL, CTTE, MTL, MTT1 ou MTT2. Il s’agit des Voitures particulières, Tricycles et Quadricycles, Cyclomoteurs à deux ou trois roues ainsi que des Motocyclettes. Le type de véhicule figure au champ J.1 visible au verso de votre carte grise (ex : J.1 VP pour véhicule particulier). Comment fonctionne l’application ? Vous êtes vendeur et vous souhaitez céder votre véhicule de façon sécurisée ? - Saisissez les informations de votre carte grise - Complétez les informations nécessaires à la cession de votre véhicule - Partagez le dossier de cession avec le futur propriétaire sur vos smartphone respectifs - Signez la cession sur l’application pour l’enregistrer - Téléchargez le certificat de cession complété et signé dans l’application Vous êtes acheteur et vous souhaitez être rassuré sur le véhicule que vous achetez et sur sa situation administrative ? - Attendez que le vendeur vous partage le dossier de cession du véhicule - Consultez et vérifiez les informations indiquées - Validez le dossier avec le vendeur - Signez l’achat depuis l’application afin que votre achat soit officiellement déclaré auprès de l’administration - Téléchargez le certificat de cession complété et signé Vous souhaitez obtenir votre nouvelle carte grise au moment même de l’achat ? Quelques clics supplémentaires dans l’application suffisent. - Ajoutez si vous le souhaitez des cotitulaires sur le dossier de votre véhicule - Renseignez les coordonnées de votre lieu de résidence - Réglez les taxes la plateforme de paiement sécurisée de l’Etat - Récupérez votre certificat provisoire d’immatriculation dans l’application (valable 1 mois) - Vous recevrez votre carte grise à votre adresse en lettre suivie sous trois jours Vous êtes déjà titulaire d’une ou plusieurs cartes grises, retrouvez les informations sur vos véhicules dans l’application. - Consultez le dossier administratif de votre véhicule - Retrouvez et téléchargez vos documents à tout moment: certificat de cession, certificat provisoire d’immatriculation.

About

TrustMe

Create and manage your secure digital identity on your smartphone in minutes. Use it to easily and safely connect to various online services, proving who you are without risk of fraud. Your data is protected and GDPR compliant.

Highlights
  • Create digital identity in under 3 minutes
  • Secure authentication for online services
  • GDPR compliant data protection
  • Identity document scanning and verification
  • Biometric liveness detection
  • Connect to public and private services
Read full description

With TrustMe, verify your identity once and use it whenever you need to. Find your verified information in a single app and use it with services compatible with TrustMe. TrustMe lets you share your information with partners while retaining control over each request: before sharing, you review the requested information and approve it. For professional purposes, verify your identity and easily submit the necessary documents to staffing agencies and companies in a variety of sectors: logistics, manufacturing, transportation, agri-food, and many others. Whether you’re a French citizen or not, TrustMe accepts a wide range of identity documents and supports you in new ways to use them in your daily life. TrustMe means your identity is verified and ready to use.

Screenshots

Simplimmat4 screens
TrustMe4 screens

Verdict

The call

Simplimmat and TrustMe both sit at 4.8 stars, but that hides the real split: 96% of Simplimmat's written reviews are positive against 65% of TrustMe's. TrustMe's advantage is update cadence (monthly vs every 3 months) and ratings volume (76 vs 17). On price, rating, 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Simplimmat against 4.8 for TrustMe. Both are backed by a comparable volume of ratings — 17 and 76 respectively. Written reviews are what separate them: 96% of Simplimmat's written reviews are positive against 65% of TrustMe's.

UpkeepUpdate frequency

Simplimmat ships an update every 3 months, TrustMe monthly. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Simplimmat versus TrustMe: the parameters behind the verdict, then further details
ParameterSimplimmatTrustMe
PriceFreeFree
Rating4.8 (17 ratings)4.8 (76 ratings) — better
Positive reviews96.1% of reviews — better65.4% of reviews
Number of ratings1776 — better
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size151 MB35 MB
Age rating4+17+
DeveloperAgence nationale des titres securisesA3BC

Customer experience

Simplimmat

All ratings16 ratings
Positive93.8%
Neutral0.0%
Negative6.3%
Written reviews51 reviews
Positive96.1%
Neutral2.0%
Negative2.0%

TrustMe

All ratings69 ratings
Positive95.7%
Neutral1.4%
Negative2.9%
Written reviews26 reviews
Positive65.4%
Neutral3.8%
Negative30.8%

In-app purchases

None

Simplimmat

No in-app purchases

None

TrustMe

No in-app purchases

Questions

Is Simplimmat free?
Simplimmat is free to download, with no in-app purchases.
Is TrustMe free?
TrustMe is free to download, with no in-app purchases.
Which has better reviews, Simplimmat or TrustMe?
TrustMe is rated higher. Simplimmat averages 4.8 out of 5 from 17 ratings, while TrustMe averages 4.8 from 76 ratings.
Do Simplimmat or TrustMe have ads?
Neither Simplimmat nor TrustMe shows ads.
Which is updated more often, Simplimmat or TrustMe?
Simplimmat ships an update every 3 months, and TrustMe monthly. Most recently, Simplimmat was updated on October 29, 2026 and TrustMe on October 30, 2026.

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