Comparison

Watt Audit vs Instal

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

Head to head

About

Watt Audit

Features

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WattAudit rend vos audits énergétiques plus efficaces et sécurisés. Avant d'arriver sur le site, préparez votre audit personnalisé. L'auditeur utilise ses identifiants personnels pour se connecter, sa position étant immédiatement géolocalisée pour une traçabilité optimale. Sur le site, le formulaire intuitif de WattAudit guide l'auditeur en temps réel, permettant l'ajout de photos ou de scans de documents. L'application garantit la sécurité des données par sauvegarde automatique à chaque saisie. La saisie des données est facilitée par le clavier numérique, et les documents et photos requis sont indiqués par une icône. À la fin, le bénéficiaire et l'auditeur signent numériquement le document, avec géolocalisation et horodatage automatiques pour assurer l'intégrité. Enfin, le formulaire est enregistré dans la blockchain TEZOS et déposé dans votre espace personnel en PDF, avec une option d'exportation en CSV.

About

Instal

Features

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Instal is your ultimate solution for finding and booking reliable home service professionals in France. Whether you need a plumber, electrician, or general handyman, Instal makes it easy to find and book trusted professionals quickly and efficiently.

Screenshots

Watt Audit4 screens

Instal4 screens

Verdict

The call

The clearest difference is update cadence: Watt Audit at every 2 weeks against Instal's every 5 weeks. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Watt Audit ships an update every 2 weeks, Instal every 5 weeks. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.

Scorecard1 real difference · 5 level

Watt Audit versus Instal: the parameters behind the verdict, then further details
Parameter	Watt Audit	Instal
Price	Free	Free
Update frequency	Every 2 weeks — better	Every 5 weeks
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.6	14.0 — better
Further details — not scored
Size	155 MB	125 MB
Age rating	4+	4+
Developer	Watt Audit	Axtech

In-app purchases

None

Watt Audit

No in-app purchases

None

Instal

No in-app purchases

Questions

Is Watt Audit free?

Watt Audit is free to download, with no in-app purchases.

Is Instal free?

Instal is free to download, with no in-app purchases.

Do Watt Audit or Instal have ads?

Neither Watt Audit nor Instal shows ads.

Which is updated more often, Watt Audit or Instal?

Watt Audit ships an update every 2 weeks, and Instal every 5 weeks. Most recently, Watt Audit was updated on September 15, 2026 and Instal on September 18, 2026.