QS.on vs Lew App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QS.on
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Welcome to QS.on, the app for carrying out structured and efficient quality inspections. Perform your site inspections with state-of-the-art software. Signature-based log recording Documentation of weak points using the built-in camera Work at any location, even without a network connection Automated mail dispatch of results Construction site scheduling from previous systems All inspections always in view Standard interfaces from upstream and downstream systems Portal-supported management system Simplest operability Cost-efficient recording of inspections A programm from practice for practitioners.
Lew App
This app supports individuals with dementia and their caregivers by offering tools for daily routines, memory aids, and communication. It connects caregivers with resources and a community forum, while also facilitating messages from friends and family.
- Customizable daily checklists with notifications
- Daily calendar with time remaining for events
- Photo and place memory aids
- Direct messaging for loved ones
- Caregiver forum for support
- Resource library for dementia care
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Welcome to Lew! Lew was designed to help with dementia loved ones and their caregivers. We designed Lew with three aspects: the loved one (the person with dementia, or that needs a bit of help), the caregiver, and friends and family. THE LOVED ONE · Daily Checklist- Fully customizable. Your loved one will get a notification when it’s time to do the task, and you will get a notification when the task has been completed. · Daily Calendar – Your loved one will see what is coming for the day and how much time before each event happens. · Pictures of People and Places – You can add people, places, and explanations of each so your loved one gently stays aware of the places and people they know. · Messages – Your loved one can get messages on the app from friends and family. They can read them as many times as they’d like. THE CAREGIVER · Forum – Sometimes it can feel isolating caring for someone with dementia. We have a forum to stay connected with people going through the same as you. · Resources – Dementia is a fulltime job. We provide some resources for you from self-care to wills and in care facilities. FRIENDS AND FAMILY · Messages – Send messages directly to loved ones you know that are suffering with dementia. It means so much to them to know people care. There are no ads. We didn’t want anyone to get “lost” on anything else. There is a monthly subscription to keep the ads out and to pay for push notifications, messaging, marketing, and future updates. More features will be added as we get Lew off the ground. We hope this can help with this monumental task. Thank you for trusting Lew.
Screenshots
Verdict
The clearest difference is price: QS.on at Free against Lew App's $1.99. QS.on also leads on in-app purchases (none vs 2) and iOS requirement (9.0 vs 14.0). Lew App's advantage is update cadence (every 2 weeks vs every 6 weeks). On ads 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
QS.on is free to download; Lew App costs $1.99 up front. Lew App sells 2 in-app purchases, starting at $1.99 per month. QS.on asks for nothing beyond the download.
QS.on ships an update every 6 weeks, Lew App every 2 weeks. The most recent releases landed on September 9, 2026 and June 4, 2026 respectively.
| Parameter | QS.on | Lew App |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 204 MB | 102 MB |
| Age rating | 4+ | 17+ |
| Developer | LEW Verteilnetz GmbH | Lew App LLC |
In-app purchases
QS.on
No in-app purchases
Lew App
- Monthly Subscription1 Month trial$1.991 Month
- Yearly Subscription1 Month trial$19.991 Year







