Progressive Sign&Glide vs Drift
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Progressive Sign&Glide
This app provides affordable, 24/7 on-water towing and assistance for registered vessels. For a single flat annual fee, users receive unlimited towing coverage and emergency dispatch services without additional membership fees or hidden costs.
- 24/7 emergency dispatch
- Unlimited on-water towing
- Flat annual fee
- No membership fees
- Affordable towing
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Sign & Glide is your answer to affordable on-water towing services. For one flat, annual fee, you will receive 24-hour emergency dispatch services and unlimited on-water towing coverage for your registered vessel. Towing assistance is available any time you need it, and there's no membership fees or unnecessary extras like other tow programs.
Drift
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Know the current and trends. Win more races. Drift measures real water current at your exact GPS location — direction in degrees true and speed in knots — in 30 seconds. Not a tide forecast. Not a modeled estimate. The actual current at your boat, right now. Every racing sailor knows that current is one of the biggest factors on the racecourse. The boat that knows what the current is and what it's doing wins the layline call, starts on the favored end, and rounds the mark first. Until now, getting that number meant guessing from a chart, estimating from a buoy, or just guessing and hoping that you got it. Drift changes that. — HOW Drift WORKS — Drop in any semi-submersible floating object into the water. Tap Mark Start. Watch the current carry it. Move to your marker and tap Mark End. Drift instantly calculates everything you need — direction in degrees true, speed in knots, so you're never left guessing again When you start measuring the current drift displays the time with a progress bar to let you know when you've been timing long enough — WHAT MAKES DRIFT DIFFERENT — All the other apps that give current are estimated based off charts and forecasts, but those can be wildly inaccurate, the current can vary even on a small dinghy race course, and even more when you're talking off shore racing Drift measures what is actually happening at your exact coordinates. The local bathymetry. Today's exact tidal state. Wind-driven current. Eddy effects near the shore. The number no forecast can give you. — FEATURES — - Set and drift in degrees true and knots - 16-point flow direction (NNE, SSW, etc.) - Smart GPS for stable, accurate readings - Live GPS reception monitoring - Session trend tracking - Automatic slack tide detection - High-contrast interface designed for direct sunlight - Large touch targets for use with gloves - Works 100% offline — no cell signal, no WiFi, no data plan - Works anywhere in the world - No account or signup required - One-time purchase — no subscription, ever — BUILT FOR RACING — Every detail in Drift exists because a racing sailor needs it, — ONE-TIME PURCHASE — $4.99. Yours forever. Unlimited readings. All future updates. No subscription, no ads, no hidden anything. Buy it once, use it for every race, every season. Drift is developed by a sailor, for sailors and coaches. It's the racing tool that you've been missing.
Screenshots
Verdict
The clearest difference is price: Progressive Sign&Glide at Free against Drift's $2.99. Progressive Sign&Glide also leads on iOS requirement (12.4 vs 17.0). On ads, 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
Progressive Sign&Glide is free to download; Drift costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Progressive Sign&Glide | Drift |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 2.5 (11 ratings) — better | — |
| Positive reviews | 18.2% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Freemium | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 30 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Compass Marine Services Inc | Andrew Sorensen |
In-app purchases
Progressive Sign&Glide
No in-app purchases
Drift
No in-app purchases








