Jet Fueling vs Auth0 Guardian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Jet Fueling
This app assists aircraft refueling operations and payload calculations. It helps determine desired bloc fuel, computes uplift quantities considering various factors, and performs basic fuel and specific gravity conversions. A built-in calculator is accessible via a swipe gesture.
- Payload vs. Bloc Fuel determination
- Uplift quantity calculation
- Fuel on Board (FOB) consideration
- APU fuel consumption calculation
- Fuel density input
- Basic fuel conversions
- Specific gravity conversions
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"Jet Fueling" can be used by anyone involved in the process of refueling an Aircraft, and/or determining Payload in regards to Bloc Fuel and vice-versa. The first tab: "LIMITATIONS" allows to fine-tune available paylod versus desired Bloc Fuel and vice-versa... Desired bloc fuel is computed on this tab. The second tab: "REFUEL", helps compute the quantity needed to be uplifted (in Liters, US Gallons or ImpG) taking into account: - The desired quantity upon departure (Bloc), - The remaining fuel on board at the time of the computation (FOB –Fuel On Board -), - The fuel consumption of an APU or other power unit until departure, - And of course Fuel density (specific gravity for the purists). It also allows for some basic conversions (ex: USg to Lbs, L to kg etc…) as well as specific gravity conversions. On both these tabs, a basic calculator can be summoned by a swipe gesture. It is dismissed in the same way.
Auth0 Guardian
This app provides multi-factor authentication by sending push notifications to your device for easy approval or denial of account access. It can also generate one-time passwords for secure logins.
- Push notification authentication
- Allow/deny account access
- One-time password generation
- Multi-factor authentication
- Secure login
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Auth0 Guardian is a mobile app that can deliver push notifications to a user’s pre-registered device (typically a mobile phone or tablet) from which a user can immediately allow or deny account access via the press of a button. It can also generate one-time passwords if that is preferred. Note for developers: Auth0 Guardian is one of the multi factor authentication options that can be used within the Auth0 identity platform (https://auth0.com). You can enable it with a single switch. You don’t have to change your apps to start supporting multi factor authentication.
Screenshots
Verdict
The clearest difference is review sentiment: Jet Fueling at 89% against Auth0 Guardian's 14%. Jet Fueling also leads on rating (4.6 vs 2.4) and update cadence (monthly vs every 3 months). Auth0 Guardian's advantage is price (Free vs $1.99) and in-app purchases (none vs 1). 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
Auth0 Guardian is free to download; Jet Fueling costs $1.99 up front. Jet Fueling sells 1 one-off in-app purchase. Auth0 Guardian asks for nothing beyond the download.
Jet Fueling holds the better App Store score, 4.6 against 2.4. That said, the two scores are not equally well evidenced: Auth0 Guardian has 116 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 89% of Jet Fueling's written reviews are positive against 14% of Auth0 Guardian's.
Jet Fueling ships an update monthly, Auth0 Guardian every 3 months. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.
| Parameter | Jet Fueling | Auth0 Guardian |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.6 (7 ratings) — better | 2.4 (116 ratings) |
| Positive reviews | 89.3% of reviews — better | 14.3% of reviews |
| Number of ratings | 7 | 116 — better |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Serge Ostrowsky | Auth0 |
Customer experience
Jet Fueling
Auth0 Guardian
Bugs and requests
Jet Fueling
Not enough reviews yet to summarise bugs or requests.
Auth0 Guardian
Reported bugs
37 issues- Notifications not working properly on iPhone iOS
- Limited notification configuration settings
- Apple Watch notification not working
- Push notifications not working
- New update broke Apple Watch approvals
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- Cannot approve MFA with Apple Watch
- Cannot long press on push notification to approve login
- Push Notification not working
- Push notifications stopped working
- Update fixed push notifications, now requires manual code entry
- New update still no notification sounds
- Receiving same code for different accounts
- iPhone does not show all numbers
- Only shows 4 numbers, need to copy and paste to see all
- Cannot see all 6 digits after update
- Cannot see ALL 6 numbers to log onto computer
- New phone transfer issues
- App did not transfer over to new phone
- QR code does not exist for new phone setup
- Won't let me transfer my account to a different phone
- Notifications are not working
- No notification sound
- No sound when notification comes up
- No sound with the notification
- Confirmations never come up, have to go into the app for codes
- App prompts to start without instructions, link, or QR code
- App did not transfer well and was unusable on new phone
- Cannot install application on telephone
- Poor migration, no way to migrate Authenticator app to a new device
- Doesn't work—won't scan any QR code’s
- Confirmation page doesn’t show immediately
- Crashes immediately upon launch
- Unable to remove tokens
- Push authorization no longer works, app just turns off
- Client won’t even open
- App doesn't launch
- Always crashes on startup
Requested features
12 requests- Allow account transfer to another phone
- Create a feature to transfer connected accounts to the same app on another phone
- Add watch capability
- Needs a watch version
- Add Apple Watch notification support
Show 7 moreShow fewer
- Restore Apple Watch approval
- Restore lock screen approval
- Add sound to notifications
- Allow users to see all 6 digits on iPhone
- Improve app startup process
- Provide instructions or QR code for initial setup
- Allow deletion of retired tokens
In-app purchases
Jet Fueling
- Chateau Tess 2009$2.99
Auth0 Guardian
No in-app purchases
Questions
Is Jet Fueling free?
Is Auth0 Guardian free?
Which has better reviews, Jet Fueling or Auth0 Guardian?
Do Jet Fueling or Auth0 Guardian have ads?
Which is updated more often, Jet Fueling or Auth0 Guardian?
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