Altitude App vs CPD District Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Altitude App
This navigation tool provides your current altitude using GPS or a digital elevation model. It offers flexibility with unit selection and target altitude setting, even working on devices without GPS.
- GPS and ASTER DEM altitude sources
- Metric and feet unit switching
- Optional target altitude setting
- Works on devices without GPS
- iPad multitasking support
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This altimeter delivers the altitude of your current position either from the device (GPS) or from the ASTER digital elevation model (with a horizontal accuracy of 30m). Depending on your current position and your device one of the two methods is more correct. Using GPS on the device is known for a large error in the altitude for difficult receiver conditions it's not available for network based positioning at all. Therefore this altimeter works on iPods and iPhones without a GPS sensor. More features: - switch between metric and feet units - set an optional target altitude - switch between Device, ASTER and combined altitude - support for the iPad multitasking (split view..)
CPD District Map
This app provides an interactive map of Chicago, displaying district and beat boundaries in real-time. It helps users identify their current location, search by address, and access quick links for precinct calls and navigation. Additional layers like satellite and street view enhance the mapping experience.
- Real-time location display
- District/Beat boundary visualization
- Address search functionality
- Quick links to precinct and navigation
- Satellite and street view layers
- Saves last searched address
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Interactive map of Chicago showing all District and District Beat boundaries. Features Include: •Know your location...Displays and/or speaks your current location in realtime. •Displays current District/Beat. •Search by address. •Quick links to: Call Precinct, My Location, Navigate to District, Official District website. •Layers: Beat Borders, District Borders, Satellite and Street View. •Associate additional phone numbers with District. •Saves last searched address. Source data obtained from https://data.cityofchicago.org/. Data curation by application developer which includes but not limited to:\n\nMap visualization (source is in CSV/Text format), border and fill colors, association address with District/Beat, etc.
Screenshots
Verdict
The clearest difference is price: CPD District Map at Free against Altitude App's $0.99. CPD District Map also leads on rating (5.0 vs 3.8) and update cadence (every 2 days vs every 6 months). Altitude App's advantage is ads (none vs shown) and chart position (#161 vs unranked). On 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
CPD District Map is free to download; Altitude App costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CPD District Map holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
Altitude App ships an update every 6 months, CPD District Map every 2 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Altitude App | CPD District Map |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.8 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 44.4% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 6 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Best chart rank | #161 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | JC Accounting & Innovative Technologies, Inc |
Customer experience
Altitude App
CPD District Map
In-app purchases
Altitude App
No in-app purchases
CPD District Map
No in-app purchases
