Double Shift vs SpearIQ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Double Shift
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Download the Double Shift App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!
SpearIQ
Access detailed California dive conditions, forecasts, and regulations. Log your dives, track progress, and train your breath-hold. Connect with the local spearfishing and freediving community.
- Local dive conditions and forecasts
- Dive site exploration and saving
- Personal dive logbook
- Breath-hold training programs
- California fish regulations
- Coastal camera feeds
- Community forums and messaging
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Know before you dive across California. SpearIQ brings local dive conditions, forecasts, logbook tools, breath training, fish regulations, coastal cameras, and California’s spearfishing community together in one place. PLAN BETTER CALIFORNIA DIVES Explore 53 dive sites from San Diego and the Channel Islands to Monterey, the Bay Area, Mendocino, Humboldt, and Del Norte. Compare: • Estimated underwater visibility • Swell height and period • Wind speed and direction • Water temperature • Tides, currents, and rainfall • Dive and fish activity scores • Multi-day forecasts and recommended dive windows • Forecast confidence and data health Browse sites by coastal region, explore them on the map, save your favorites, and pull to refresh for the latest available conditions. BUILD YOUR DIVE LOGBOOK Record depth, duration, visibility, water temperature, number of descents, catches, sightings, and personal notes. Connect Apple Health to import supported dive information from an Apple Watch or compatible dive computer. Review each detected dive, choose the correct location, and add catches, sightings, visibility, and notes before saving it to your logbook. TRACK YOUR PROGRESS See your total dives, time in the water, average visibility, deepest dive, longest session, clearest conditions, biggest catches, and personal dive history. Compare the forecast with the conditions you experienced and build a better understanding of your favorite sites over time. TRAIN YOUR BREATH HOLD Build a safer, more consistent foundation with guided dry static-apnea sessions and apnea walks. • Adjust breath-hold time, recovery time, progression, and rounds • Choose from built-in training presets • Follow clear safety checks before every session • Record how each session felt • Track completed sessions on your device • Learn through a practical safety handbook and frequently asked questions SpearIQ’s training tools focus on relaxation, awareness, and conservative progression—not maximum attempts. CHECK CALIFORNIA FISH REGULATIONS Browse fishery information organized across California’s five CDFW management areas. Review species guidance, seasons, limits, closures, advisories, and Marine Protected Area resources before heading out. Regulations can change. Always confirm the current rules through official California Department of Fish and Wildlife resources. VIEW COASTAL CAMERAS Open available coastal and underwater camera feeds for another look at current conditions before committing to a dive. FIND YOUR CALIFORNIA DIVE CREW Connect with divers across California to: • Share condition reports • Find dive partners • Plan upcoming trips and meetups • Ask questions • Discuss equipment and techniques • Reply to community posts • Message other divers directly SpearIQ is built for California divers who want better information, better records, smarter training, and stronger connections throughout the local spearfishing and freediving community. IMPORTANT SAFETY INFORMATION Conditions can change quickly. Forecasts are planning tools—not guarantees of safe diving conditions. Always evaluate the site in person, verify official regulations, use appropriate equipment, dive within your training, and never dive alone. All guided breath-hold sessions are intended for dry training only. Never practice breath holding alone in water and never hyperventilate. Apnea walks require a capable, dedicated buddy and a safe, clear route. SpearIQ is not medical advice or a substitute for certified freediving instruction. Apple Health features require permission and compatible hardware. Available dive information depends on the recording device and data stored in Apple Health.
Screenshots
Verdict
The clearest difference is ads: SpearIQ at none against Double Shift's shown. On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Double Shift ships an update every 5 weeks, SpearIQ every 2 months. The most recent releases landed on October 3, 2026 and October 25, 2026 respectively.
| Parameter | Double Shift | SpearIQ |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 123 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | The Turn Holding BV | OKRA Labs LLC |
In-app purchases
Double Shift
No in-app purchases
SpearIQ
No in-app purchases
Questions
Is Double Shift free?
Is SpearIQ free?
Do Double Shift or SpearIQ have ads?
Which is updated more often, Double Shift or SpearIQ?
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