Comparison

AmpUp vs Slé

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AmpUp

Find, reserve, and pay for electric vehicle charging stations seamlessly. This app allows you to locate chargers, monitor your charging progress, and manage payments easily. It also offers notifications and a history of your charging sessions.

Highlights
  • Find EV chargers nearby or on route
  • Reserve chargers in advance
  • Scan QR code to start charging
  • In-app payment options
  • Monitor charging progress remotely
  • Receive charging notifications
  • View charging history and receipts
Features
Read full description

EV CHARGING MADE EASY If you own an EV, you know how frustrating it can sometimes be to charge. AmpUp makes charging easy by enabling building and property owners to provide charging for their residents, workers, or people just passing by – seamlessly and hassle free. People like you! FIND CHARGERS NEAR YOU Find chargers nearby or on your route, see if they are available, and even reserve them ahead of time. Bookmark favorite chargers or enable notifications for when an occupied charger becomes available. Discover not only AmpUp powered chargers, but also chargers from other networks. CHARGE WITH A QUICK SCAN Just scan the AmpUp QR code on the charger with the app’s QR reader to start your session in seconds. Or check into a charger reserved at a location in advance. Some locations require special access, which you can request from the charger’s host. PAY IN APP OR SCAN RFID Pay using a credit card or with a card in your phone’s wallet. Save your payment method so you can charge quickly and easily on any of AmpUp’s thousands of chargers. You can also link your existing RFID card or badge - or request a new AmpUp RFID card - to swipe and charge quickly without your phone. COMMUNITY POWERED Each charger host sets the prices and policies for their chargers. AmpUp makes the policies and pricing transparent for drivers, so you can see what charging speed you’re getting and what you are paying per minute or kWh of charging. REMOTELY MONITOR AND GET NOTIFICATIONS See how your charge is progressing right on your phone. Get notified when your session is done. Know exactly what you’re paying and how many kWh you have added to your vehicle. See charging session history and receipts. PRICES AND FEES Hosts set their own prices and policies, and AmpUp handles payments on their behalf. Hosts sometimes set up idle fees, which promote charger availability by encouraging drivers to vacate the parking space after charging. Get push alerts before idle fees start with a reminder to move your car. PROFESSIONAL SUPPORT AmpUp provides customer support for drivers. If you have an issue, our support staff can get back to you within 24 business hours to address your charging or billing issue. Note that prices and idle fees are set by hosts, and AmpUp does not have any control over those fees or policies. BECOME A HOST Make money and help take polluting internal combustion cars off the road by installing AmpUp-enabled chargers at your place of work or residence. Charging your car using AmpUp is only the beginning - get the app and become a host!

About

Slé

Track your daily travel habits to understand their impact on air quality, traffic, and personal health. Get personalized tips to improve your score and compete with friends to foster a healthier community.

Highlights
  • Score daily trips
  • Connect with friends
  • Improve air quality
  • Reduce traffic congestion
  • Enhance personal health
  • Track progress
  • Community competition
Read full description

The Slé app brings transparency and connectivity to your mobility patterns—whether you’re driving, riding, or on foot. Use Slé to score daily trips, connect and compete with friends in support of cleaner air, less traffic, and a healthier community. Your Slé Score: See how your daily trip routines contribute to local air quality, traffic patterns, and personal health—all in one place. Actionable Guidance: Explore choices, track progress and improve your score with feedback designed to get you started and keep you going. Community Competition: Share your score and compete with friends to support a happier community, better city, and brighter future.

Screenshots

AmpUp4 screens
Slé4 screens

Verdict

The call

The clearest difference is review sentiment: Slé at 100% against AmpUp's 37%. Slé also leads on rating (5.0 vs 4.4). AmpUp's advantage is ratings volume (4.2K vs 6). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Slé holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: AmpUp has 4.2K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 37% of AmpUp's written reviews are positive against 100% of Slé's.

UpkeepUpdate frequency

AmpUp ships an update every 2 weeks, Slé every 3 weeks. The most recent releases landed on September 26, 2026 and September 7, 2026 respectively.

Scorecard3 real differences · 7 level
AmpUp versus Slé: the parameters behind the verdict, then further details
ParameterAmpUpSlé
PriceFreeFree
Rating4.4 (4.2K ratings)5.0 (6 ratings) — better
Positive reviews37.1% of reviews100.0% of reviews — better
Number of ratings4.2K — better6
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better16.1
Further details — not scored
Size118 MB59 MB
Age rating17+4+
DeveloperNAD Grid CorpThrivity Corporation

Customer experience

AmpUp

All ratings4,162 ratings
Positive84.8%
Neutral2.3%
Negative12.9%
Written reviews310 reviews
Positive37.1%
Neutral2.3%
Negative60.6%

Slé

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

AmpUp

Reported bugs

5 issues
  • App crashes and freezes
  • Charging stations not working as expected
  • Issues with QR code scanning and manual station ID entry
  • Incorrect or missing charge session data
  • Unexpected and unjustified charges

Requested features

5 requests
  • Improve app stability and reliability
  • Provide more transparent pricing information
  • Implement audible alerts for charge completion
  • Enhance user experience for iPhone users
  • Offer more payment options and integration with existing accounts

Slé

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

AmpUp

No in-app purchases

None

Slé

No in-app purchases

Questions

Is AmpUp free?
AmpUp is free to download, with no in-app purchases.
Is Slé free?
Slé is free to download, with no in-app purchases.
Which has better reviews, AmpUp or Slé?
Slé is rated higher. AmpUp averages 4.4 out of 5 from 4.2K ratings, while Slé averages 5.0 from 6 ratings.
Do AmpUp or Slé have ads?
Neither AmpUp nor Slé shows ads.
Which is updated more often, AmpUp or Slé?
AmpUp ships an update every 2 weeks, and Slé every 3 weeks. Most recently, AmpUp was updated on September 26, 2026 and Slé on September 7, 2026.

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