# Renfort: Back & Neck Coach — Stretch & strengthen in 10 min

> Stretch & strengthen in 10 min (iPhone/iPad app by VOID.)

- Source: https://appshunter.io/ios/app/renfort-back-and-neck-coach/id6816741198 (this page in markdown: same URL + `.md`)
- Developer: [VOID](https://appshunter.io/developer/1662522602)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 97 MB
- Languages: American English, French (France), European Spanish
- Released: 2026-09-29
- Data updated: 2026-10-12

## What is Renfort?

Renfort helps you loosen up and strengthen your neck, back and shoulders in 10 minutes a day, at home or at the office.

Mira, your AI coach, guides you by voice from start to finish: she introduces each exercise, reminds you of good form and cheers you on. Every move is demonstrated on video with a big, clear timer, so you can do your session without breaking position to look at the screen.

MIRA REMEMBERS
A 15-second check-in before your session (where it feels tight, how much discomfort, how much time you have) and Mira suggests the right session, even a 3-minute express version. Day after day, you see what works best for you.

CHALLENGES AND DUELS
• Live duel: challenge a friend right now or at a time you choose. Same position, each at home: the first one to let go loses.
• #BeatMira: every Monday, Mira sets a time. Beat her and share your score card.
• Timed challenges: plank, wall sit, glute bridge… beat your personal best.

6 PROGRAMS
• Stability: shoulder blades and rotator cuff
• Release: neck and shoulders
• Upper back: rows and stretches
• Lats: strengthening and stretches
• Glutes: pelvis and hips
• Flexibility: hips, hamstrings and back

WELLBEING
Guided breathing, relaxation with music, seated massage, active desk breaks, posture, sleep, anatomy, and an "In the car" session to do while parked.

A REAL GUIDED SESSION
• Guided tempo: lift, lower, hold, rest
• Sets, reps and side switches handled automatically
• Posture tips during stretches
• A session of the day suggested from a weekly plan

ON THE BIG SCREEN
• Apple TV app, controlled with the Siri Remote
• AirPlay: the session shows full screen on your TV and your iPhone becomes the remote

APPLE HEALTH
With your permission, your sessions are saved as workouts and your breathing as Mindful Minutes in the Health app. Mira can also read your steps and sleep to tailor her advice. This data stays on your iPhone.

TRACK YOUR PROGRESS
• Session history, consistency and streaks
• Rate your tension after each session and watch it evolve (stays on your device)

FREE, WITH RENFORT+ AS AN OPTION
The session of the day, the check-in with Mira, challenges, live duels, #BeatMira and Duo sessions are free, with no account and no ads. The Renfort+ subscription unlocks every session on demand, the 4-week program, guided relaxation, seated massage, sleep and the full anatomy library.
• Renfort+ yearly, with a 7-day free trial for new subscribers
• Renfort+ monthly
Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings or in the app (Settings → Manage my Renfort+ subscription).

Terms of Use: https://renfort-api-8c9830840973.herokuapp.com/legal/terms.html
Privacy: https://renfort-api-8c9830840973.herokuapp.com/legal/privacy.html

Mira is a virtual coach: her videos, images and voice were created with artificial intelligence.

Renfort offers wellness exercises. It does not replace advice from a doctor or physical therapist. If you feel sharp pain, stop the exercise and see a health professional.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Renfort+ annuel | $34.99 | per year |
| Renfort+ mensuel | $6.99 | per month |


## Is Renfort safe?

Not enough ratings yet to assess Renfort.

## Is Renfort legit?

Renfort: Back & Neck Coach appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Renfort is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.1 — 2026-10-05

Renfort now speaks English and Spanish! Mira guides every session in your language. The app follows your iPhone's language, or pick one in Settings → Language. Also new: a clearer Settings screen, live duels with an optional camera, and Apple Health.

### 1.0.2 — 2026-10-05

- Duel en direct : défiez un ami tout de suite, ou programmez le duel (ce soir 21 h, demain 8 h…) avec un rappel. Même position, chacun chez soi : le premier qui lâche a perdu.
- Une app plus simple : quatre onglets (Aujourd'hui, Séances, Défis, Moi), et après chaque séance, Mira vous propose la suite.
- Mira se souvient : un bilan de 15 secondes avant la séance (où ça tire, votre gêne, votre temps) et Mira vous propose la bonne séance, même en version express de 3 minutes. Après, vous voyez ce qui marche vraiment pour votre dos.
- #BatsMira : chaque lundi, Mira fixe un chrono. Battez-la, partagez votre carte de score en Story, et découvrez le vendredi si les humains ont gagné.
- Entraîne-toi avec moi : la même séance au même moment, chacun chez soi, avec un ami ou un binôme anonyme.
- Défis chrono entre amis et nouvel espace Bien-être : respirer, détente guidée, massage assis, pause active, posture au bureau, sommeil, anatomie, et une séance « En voiture » à faire garé.
- Renfort+ : toutes les séances au choix, détente, massage, sommeil et anatomie complète, avec 7 jours offerts sur l'abonnement annuel. La séance du jour reste gratuite.

### 1.0.1 — 2026-10-04

• Nouveau : votre série de jours d'affilée s'affiche sur l'accueil 
• La vidéo de l'exercice 90/90 a été entièrement refaite : le mouvement est plus clair à suivre.
• Nouveau dans l'accueil et les Réglages : vous pouvez choisir d'aider Renfort à se faire connaître en autorisant, ou non, la mesure de nos publicités. C'est facultatif, rien n'est envoyé tant que vous n'avez pas accepté, et aucune donnée de santé n'est jamais transmise.
• Petites améliorations de stabilité.

### 1.0 — 2026-10-01

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-12.*