4 vs Deep and Steep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
4
Visualize and plan skydiving jumps with animated guides for 3-way and 4-way relative work. Prepare briefings, practice moves, and judge jumps for training or competition.
- Animated 4-way relative work guides
- 3-way relative work visualization
- Jump briefing preparation
- Practice jump moves
- Jump judging assistance
- Pocket-sized competition tool
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At last ! Anything you need to know about 4 Way Relative Work, shown with animations !!! And now, 3-way is also possible. Manu Sarrazin - 3 times world champion : "Brilliant and essential !" Prepare your jumps, try the various possible briefings, see the moves that you'll have to perform during the jump, judge the jumps... During competitions or trainings, a must to hold in your suit's pocket. Note : 3-Way is an in-app purchase
Deep and Steep
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The Deep and Steep app connects to your Insight, Soundlink, or Stratos. Configure your altimeter and keep all of your logbook data organized in one spot. Use the interactive GPS track overlay to debrief your skydives using GPS data from an Insight or Stratos.
Screenshots
Verdict
The clearest difference is price: Deep and Steep at Free against 4's $3.99. Deep and Steep also leads on in-app purchases (none vs 1) and update cadence (every 2 days vs every 10 months). 4's advantage is iOS requirement (12.0 vs 16.0). 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
Deep and Steep is free to download; 4 costs $3.99 up front. 4 sells 1 one-off in-app purchase. Deep and Steep asks for nothing beyond the download.
4 ships an update every 10 months, Deep and Steep every 2 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | 4 | Deep and Steep |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 3.3 (3 ratings) — better | — |
| Positive reviews | 84.6% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 10 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 12 MB | 40 MB |
| Age rating | 4+ | 17+ |
| Developer | AirXygene Parachutisme | Deep and Steep LLC |
In-app purchases
4
- 3-Way Formations$1.99
Deep and Steep
No in-app purchases
