Heritage Units vs Upside Down Text ∞
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Heritage Units
This app allows users to track and report special interest locomotives from major US railroads. View reported units on a map within a 200-mile radius and contribute new sightings directly from your device.
- Track heritage units
- Report new locomotive locations
- View locomotives on maps
- Search within 200 miles
- Support for major railroads
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Track and report Heritage units (locomotives) and other special interest units for Norfolk Southern, Union Pacific, CSX, BNSF and other railroads. Features: • View reported locomotives within a 200 mile radius of your devices location. • Report a new locomotive location directly from the app • View locomotives on maps All recorded locomotive information is provided by volunteers using native apps and website (https://www.heritageunits.com) Continued use of GPS running in the background can dramatically decrease battery life. Terms of use: https://www.heritageunits.com/user/terms Privacy policy: https://www.heritageunits.com/user/privacy
Upside Down Text ∞
Easily flip your text upside down to create unique messages. Simply type your text, copy it, and paste it into any application to surprise your friends. Have fun experimenting with this simple yet engaging tool.
- Type text to format
- Copy formatted text
- Share formatted text
- Paste into any app
- Create unique messages
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Upside Down Text ∞ – Flip & Reverse Your Text! Want to impress your friends or write unique messages? Upside Down Text ∞ makes it super easy to flip, reverse, and invert your text in seconds! Type your message, copy the flipped text, and paste it anywhere—messages, social media, bios, and more! Features: • Flip your text upside down instantly (uʍop ǝpısdn) • Reverse text direction • One-tap to copy to clipboard • Share directly to other apps • Simple, fast, and easy-to-use interface How it works: 1. Type or paste your text in the box. 2. The app instantly converts it upside down. 3. Tap "Copy" to save it to your clipboard. 4. Paste it and share it with your friends! Download Upside Down Text ∞ today and start sending fun, flipped messages!
Screenshots
Verdict
The clearest difference is rating: Upside Down Text ∞ at 4.9 against Heritage Units's 4.1. Upside Down Text ∞ also leads on in-app purchases (none vs 2) and ads (none vs shown). Heritage Units's advantage is update cadence (every 10 days vs every 2 months) and ratings volume (253 vs 15). On price 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
Both are free to download. Heritage Units sells 2 in-app purchases, starting at $0.99 per year. Upside Down Text ∞ asks for nothing beyond the download.
Upside Down Text ∞ holds the better App Store score, 4.9 against 4.1. That said, the two scores are not equally well evidenced: Heritage Units has 253 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 58% of Heritage Units's written reviews are positive against 89% of Upside Down Text ∞'s.
Heritage Units ships an update every 10 days, Upside Down Text ∞ every 2 months. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.
| Parameter | Heritage Units | Upside Down Text ∞ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (253 ratings) | 4.9 (15 ratings) — better |
| Positive reviews | 58.1% of reviews | 88.9% of reviews — better |
| Number of ratings | 253 — better | 15 |
| Update frequency | Every 10 days — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 122 MB | 6 MB |
| Age rating | 17+ | 4+ |
| Developer | Brian Minnich | Sandya Leelarathne |
Customer experience
Heritage Units
Upside Down Text ∞
Bugs and requests
Heritage Units
Reported bugs
14 issues- App crashes when refreshing or loading reports
- Persistent 'You've reached your limit for spots' error that lasts weeks or months
- Login credentials rejected despite correct password/username
- Automatic logout after 1-2 months of inactivity
- Premium subscription purchases not recognized by app
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- Email validation not working or emails not received
- Location tracking showing incorrect geographic location
- Reports not posting after submission despite multiple attempts
- Timezone error when submitting reports
- App incompatibility with certain iOS versions (iOS 12, etc.)
- Cannot report certain locomotives that exist in database
- Notification system stops working after initial use
- API exceptions with no user-side resolution
- Random account suspensions without explanation
Requested features
15 requests- Dark mode and light mode toggle
- Report timestamp visibility to distinguish old vs new reports
- Edit and delete buttons for submitted reports
- Increase daily/monthly report submission limits
- Ability to favorite or star specific locomotives
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- View history of past reports made by user
- Color-coded report age indicators (green for current, red for old, etc.)
- Push notifications for units within 50-100 miles
- Guest mode without account creation requirement
- Chat feature for railfan community discussion
- Add more heritage units to database (NS 3625, BNSF H1s, etc.)
- Unlimited photo uploads for free users
- Live time and destination information for trains
- Ability to report multiple units in single photo with highlights
- Include normal locomotives, not just heritage units
Upside Down Text ∞
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Heritage Units
- Ad Free$0.991 Year
- Premium Membership$5.991 Year
Upside Down Text ∞
No in-app purchases
Questions
Is Heritage Units free?
Is Upside Down Text ∞ free?
Which has better reviews, Heritage Units or Upside Down Text ∞?
Do Heritage Units or Upside Down Text ∞ have ads?
Which is updated more often, Heritage Units or Upside Down Text ∞?
Other comparisons
