Fly Forecast vs VoltHop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fly Forecast
Get real-time turbulence data reported by pilots and access hundreds of aviation and weather maps. Visualize turbulence overlays on a map and filter by time and altitude for safer travels.
- Pilot-reported turbulence data
- High-resolution turbulence overlays
- Access to 600+ aviation/weather maps
- Filter turbulence by time and altitude
- Share turbulence map views
Read full descriptionHide full description
See turbulence before you feel it. Fly Forecast puts the weather pilots fly by on one live map — real pilot reports of turbulence and icing, hazard areas, radar, satellite and official FAA charts — and briefs your flight: set a route and an altitude, and it tells you what the line flies through. For a pilot planning a leg, a frequent flyer picking the smoothest departure, or a nervous passenger wondering how tonight's flight will feel, Fly Forecast answers in plain words. BRIEF YOUR FLIGHT • Set a departure, destination, cruise altitude and time, and the route draws on the map • The briefing lists what lies along it: pilot reports near your altitude, the hazard areas the line crosses and whether they reach cruise, the freezing level, and the winds aloft as a headwind or tailwind • Takeoff and landing in plain words: gusts, crosswind, wind shear and storms • Compare Days: your route's turbulence and jet-stream forecast, eight days ahead • Check both ends against your personal minimums • Start a plan from a flight number, save plans by name, share any as a pilot's or passenger's PDF with map, terrain and NOTAMs, kept in Files LIVE TURBULENCE MAP • Pilot reports (PIREPs) in standard symbols, colored by severity, each with its altitude; tap one for the full report in plain words, aircraft type included • Presets for Turbulence, Icing, VFR Local, IFR Cruise and Convective • An altitude band and a time bar: hazards at your level, hours ahead or two days back • G-AIRMETs, SIGMETs, Center Weather Advisories, TFRs, the convective forecast, storm outlooks and watches, volcanic ash and fronts • A worldwide turbulence forecast, the jet stream, forecast gusts, station winds and the Atlantic tracks • Radar with echo tops and a loop, Canada's radar, satellite, and hurricanes with NHC cones and tracks • FAA VFR Sectional, IFR Low and IFR High charts underneath • Press and hold for a point briefing • Opens on saved data if you lose signal FOR PASSENGERS • Track a flight by number, today or a week ahead, with a reminder that morning, and see what lies along its route • Save the outlook before you board and read it in airplane mode • The Turbulence Meter measures the bumps you feel and keeps every flight, by the minute and on the map, to share or export • The Turbulence Guide explains what each level feels like and the sounds of a flight, with a breathing exercise A PREFLIGHT PAGE FOR EVERY AIRPORT • Almost 11,000 airports, with favorites, a home airport and the fields near you • Decoded METAR and TAF with flight categories, a six-hour trend and density altitude • Headwind and crosswind for every runway • Sunrise, sunset and twilight • NOTAMs, airport diagrams, FAA delays, the forecast discussion, and AWOS and ASOS with tap-to-call WINDS ALOFT & CHARTS • Winds and temperatures aloft for the US, Alaska, Hawaii and the Pacific, with each station's freezing level, or as barbs on the map • 1,900 charts: Graphical Forecasts for Aviation, the jet stream, turbulence (GTG) and icing (CIP/FIP) guidance, significant weather, GOES satellite and space weather MADE FOR THE COCKPIT • iCloud keeps your plans, meter sessions, favorites and settings the same on all your devices • Zulu time and a navy dark mode • VoiceOver for every marker on the map, and text that grows with your settings • Siri, Shortcuts, Spotlight airport search, and side panels on iPad • No sign-up, no ads, no tracking Data from the NOAA Aviation Weather Center, National Weather Service, Weather, Storm and Space Weather Prediction Centers, National Hurricane Center, the FAA, the USGS and NESDIS/STAR satellites, with international imagery from EUMETSAT, the German Weather Service (DWD) and the Japan Meteorological Agency, forecast winds from Environment and Climate Change Canada, flight positions from the adsb.lol and adsb.fi community networks and routes from adsbdb and adsb.im. Fly Forecast is an informational tool and not a substitute for an official preflight weather briefing.
VoltHop
This app connects e-bike owners to allow travelers to rent batteries locally. Renters can find compatible batteries at their destination, while owners can earn money by listing their unused batteries. It facilitates direct peer-to-peer sharing without intermediaries.
- Local e-bike battery rentals
- Earn by listing your battery
- Live map search with filters
- Supports multiple e-bike brands
- Direct rider communication
- Renter and supplier modes
Read full descriptionHide full description
You love your e-bike. But when you travel, your battery can't come with you... airlines won't allow it. That's where VoltHop comes in. Find a fellow rider at your destination who owns the same e-bike and borrow their battery while they're not riding. No middleman, no shipping. Just one rider helping another. When you're not riding, return the favor. List your battery, set your price, and earn from travelers passing through your city. HOW IT WORKS Renters: Search your destination by dates and e-bike model. Browse available batteries on a live map with photos, daily rates, and pickup details. Send a request, get approved, and coordinate pickup through WhatsApp, Messenger, or SMS. Suppliers: Not riding for a while? List your battery, set your daily rate in any currency, and earn from riders visiting your city. Approve requests on your terms. KEY FEATURES - Live map search with filters for dates, price range, and bike model - Supports Brompton, Velotric, Lectric, Ride1Up, Aventon, Engwe, , and more - Save listings and track upcoming rentals - Switch between renter and supplier mode anytime - Direct contact via WhatsApp, Messenger, or SMS - Sign in with Apple, Google, or email Now take your e-bike anywhere you go.
Screenshots
Verdict
The clearest difference is review sentiment: Fly Forecast at 75% against VoltHop's 0%. Fly Forecast also leads on rating (5.0 vs 4.5) and update cadence (weekly vs monthly). VoltHop's advantage is iOS requirement (15.1 vs 17.0). On price, ratings volume, ads and in-app purchases 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.
Fly Forecast holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 75% of Fly Forecast's written reviews are positive against 0% of VoltHop's.
Fly Forecast ships an update weekly, VoltHop monthly. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.
| Parameter | Fly Forecast | VoltHop |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 75.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 17 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Carcerano | Seungyu Paik |
Customer experience
Fly Forecast
VoltHop
In-app purchases
Fly Forecast
No in-app purchases
VoltHop
No in-app purchases









