Optimal Authenticator vs Duke Energy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Optimal Authenticator
This app provides a secure way to verify your identity for accessing other applications. It uses two-factor authentication via push notifications or verification codes, and allows organizations to register trusted devices for sign-in requests.
- Two-factor authentication
- Push notification verification
- On-app verification codes
- Trusted device registration
- Secure identity verification
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With the Optimal Authenticator, quickly and securely verify your identity for access to all of your applications. Authentication features include: Two-factor authentication: Two-factor authentication provides an extra layer of security to your account. When signing in, after entering your password, you'll be asked to provide additional verification via the app. A push notification is sent to your mobile device to alert you of a pending two-factor verification request. Simply tap on the notification to launch the app and tap Approve to complete the verification. Alternatively, you may be prompted to enter the verification code displayed in the app. Device registration: By registering your device through the app, organizations can verify that the sign-in request is coming from a trusted device.
Duke Energy
Manage your energy accounts conveniently from your mobile device. View and pay bills, report outages, track energy usage, and access customer support. Save money with energy-saving offers.
- Easy login with Touch ID/Face ID
- View and pay bills
- Report power outages
- Track energy usage
- Set up bill reminders
- Access energy-saving offers
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With the Duke Energy app, you’ll be able to easily manage and view your accounts anywhere, anytime. Current features of the Duke Energy app allow you to: • Easily log in. Using your Duke Energy account, you’ll be able to log in once and have options to set up either Touch ID® or Face ID® to easily access your account. • View and pay bill. Access your bill from anywhere and set up automatic payments. You can also view your billing history and easily compare bills from last year and last month. • Report an outage. Inform us if your power is out and get updates on when it is estimated to be restored. • Track energy usage. View your past and recent energy use so you can better manage it and get more detailed information. • Set up bill reminders. Stay on top of your bill and always know when to pay. • Save more. Take advantage of our energy and money-saving offers. • Customer service. Contact our customer support if you ever have questions about your service or your energy bill.
Screenshots
Verdict
The clearest difference is rating: Duke Energy at 4.8 against Optimal Authenticator's 3.0. Duke Energy also leads on update cadence (fortnightly vs every 3 months) and review sentiment (25% vs 0%). Optimal Authenticator's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model 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.
Duke Energy holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Duke Energy has 182K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Optimal Authenticator's written reviews are positive against 25% of Duke Energy's.
Optimal Authenticator ships an update every 3 months, Duke Energy fortnightly. The most recent releases landed on October 6, 2026 and October 21, 2026 respectively.
| Parameter | Optimal Authenticator | Duke Energy |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 4.8 (182K ratings) — better |
| Positive reviews | 0.0% of reviews | 25.1% of reviews — better |
| Number of ratings | 4 | 182K — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #180 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 80 MB | 93 MB |
| Age rating | 4+ | 4+ |
| Developer | Optimal IdM | Duke Energy Corporation |
Customer experience
Optimal Authenticator
Duke Energy
Bugs and requests
Optimal Authenticator
Not enough reviews yet to summarise bugs or requests.
Duke Energy
Reported bugs
4 issues- Daily usage graphs not working
- Unable to log in consistently
- Payment information not saving properly
- App redirects to website instead of in-app functionality
Requested features
5 requests- Add last month/last year usage comparison
- Display dollar amount in addition to kWh
- Improve outage map and notifications
- Implement two-factor authentication
- Allow scheduling of bill payments
In-app purchases
Optimal Authenticator
No in-app purchases
Duke Energy
No in-app purchases
Questions
Is Optimal Authenticator free?
Is Duke Energy free?
Which has better reviews, Optimal Authenticator or Duke Energy?
Do Optimal Authenticator or Duke Energy have ads?
Which is updated more often, Optimal Authenticator or Duke Energy?
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