15
BU Score
Niche
Rein und raus
✍️ bumetric analysis
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Rein und raus is an iOS app from Alteru Inc. in the Business category, currently rated 1.0★ across 1 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 15: Niche (micro-niche or pre-traction stage). For a Business app, that means micro-niche or pre-traction stage.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Below-average rating (1.0★)METRIC | −$1,500 | |
| Mature app (14y old)METRIC | +$1,500 | |
| Multilingual (10 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Pre-traction phase (1 ratings)METRIC | −$300 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 6 MB🔞 4+📱 iOS 14.0+🔖 v26🔄 updated 10mo ago🌐 NL, EN, FR, DE, IT +5📂 Business💰 Paid🚀 Launched 2011 (14y old)
📝 About this app
A checkin and checkout system with scannable ID card creation. It can be used by schools, church, movie theater, company to check in/out people. It is simple and easy to use. This app is for any institution who needs to checkin and checkout people by simply scanning the check in/out QRCode card or Wallet Pass created by this app.
I. ID card Creation
- create check in/out Scannable ID (QR code barcode ID)
- create card with your own background
- create card with default background (more will be added)
- create Scannable Keychain ID card.
- Create and Print ID card directly from iOS devices.
- Create scannable ID card suitable for any commercial company, school, or anyone.
- Create card with Photo directly taken from camera
- Bulk upload cards with CSV file
II. ID Card Printing
- Print ID card directly from iOS devices
- Show a list of ID for Reprint
- Print two cards at one time with two sides
- Print cards with different layout such as regular ID card, keychain card.
- Send ID card to email for any 3rd party professional ID printing service.
III. Use for check-in and check-out
- People can come and scan the card at the back of the scannable ID card. You can click "Done" to check in/out. You may also set up in the setting so that it can take the person's signature as well.
- All check-in, check-out time is saved in database which can be used to generate any report by date.
IV. Report
- Generate report for today
- Generate report by Date
- Generate report with signature (PDF)
- Send all reports to Excel format (.csv)
V. User Case
- Student Check in and Check out
- Church Check in and out
- Company worker Check in and out
- Keep track attendance for any special event
Requirement:
Internet is required for any barcode creation. Therefore, if you don't have internet, you may create ID card without scannable barcode. The user ID and name is sent to our server to generate the QR code. We choose QR code because QR code can provide more information than any regular barcode. You don't need internet for Checkin and Checkout action.
I. ID card Creation
- create check in/out Scannable ID (QR code barcode ID)
- create card with your own background
- create card with default background (more will be added)
- create Scannable Keychain ID card.
- Create and Print ID card directly from iOS devices.
- Create scannable ID card suitable for any commercial company, school, or anyone.
- Create card with Photo directly taken from camera
- Bulk upload cards with CSV file
II. ID Card Printing
- Print ID card directly from iOS devices
- Show a list of ID for Reprint
- Print two cards at one time with two sides
- Print cards with different layout such as regular ID card, keychain card.
- Send ID card to email for any 3rd party professional ID printing service.
III. Use for check-in and check-out
- People can come and scan the card at the back of the scannable ID card. You can click "Done" to check in/out. You may also set up in the setting so that it can take the person's signature as well.
- All check-in, check-out time is saved in database which can be used to generate any report by date.
IV. Report
- Generate report for today
- Generate report by Date
- Generate report with signature (PDF)
- Send all reports to Excel format (.csv)
V. User Case
- Student Check in and Check out
- Church Check in and out
- Company worker Check in and out
- Keep track attendance for any special event
Requirement:
Internet is required for any barcode creation. Therefore, if you don't have internet, you may create ID card without scannable barcode. The user ID and name is sent to our server to generate the QR code. We choose QR code because QR code can provide more information than any regular barcode. You don't need internet for Checkin and Checkout action.
🆕 What's New · v26
fix QR code generation problem
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Rein und raus
- Developer
- Alteru Inc.
- Bundle ID
- com.alteru.business.studentcheckout
- App Store URL
- Open in App Store
- Category
- Business
- Content rating
- 4+
- Languages
- NL, EN, FR, DE, IT, JA, KO, RU, ZH, ES
Company
- Website
- www.alteru.com
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $8.1K/mo
- Top-grossing rank
- Outside top 100 in US Business
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
⭐Recent App Store Reviews10 latest · avg 2.3★ · 20.0% 5★ · 60.0% 1★
5★2 (20%)
4★1 (10%)
3★1 (10%)
2★0 (0%)
1★6 (60%)
+0 ratings/week
Praise: love ×3 great ×3 fantastic ×1 recommend ×1Complaints: refund ×2 crash ×1 broken ×1
Top positive
★★★★☆ Great but could use some versatility
Bought this for youth group and children's church check in. I do wish it had a option to print on 4x6 since my printer won't accept 3x5 and it would be great if the barcode printed on the card itself instead of another but it did …
★★★★★ Great app for Pool Check in and check out
Our community pool has been using this app for three years. And we absolutely love it. We use it to track the coming and going's of our members. This app allows us to print out membership cards which can be scanned when members enter a…
Top negative
★☆☆☆☆ Ms
Do not purchase! Won't work! I've emailed the company and won't get a response or money back.…
★☆☆☆☆ Refund not working
I need refund. Apple should not allow these kind of apps on their store. Horrible…
📈Ratings growth1 ratingsShow 3-year history estimate ▾
Tracked (12 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
Full revenue analysis
Read the article-style breakdown for Rein und raus: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.