Comparison

Voltage Mail vs DeepNet MobileID (OOBA)

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

Head to head
About

Voltage Mail

Securely read and compose encrypted emails on your mobile device. This app allows you to send and receive secure messages, integrating with your existing email accounts and offering robust security features for organizations.

Highlights
  • Read encrypted emails and attachments
  • Compose new secure email messages
  • Send and receive secure emails
  • Integrates with native email apps
  • Supports mobile policy restrictions
  • Simple self-registration and authentication
Features
Read full description

Anyone who sends and receives an encrypted email from Voltage SecureMail can use this application to read and write the email. A license for Voltage SecureMail Mobile Edition is required to compose and send new secure emails from the app and enforce mobile policy restrictions. Audience: Organizations that use Voltage SecureMail to send and receive secure emails. With Voltage SecureMail mobile app you can: • Read encrypted emails and attachments • Compose a new secure email message • Send and receive secure emails to anyone • Works with your device's native email applications and inboxes • Works with Apple iPhones, iPads, and email clients • Simple self-registration and authentication • Works with desktop, cloud, and web-based email systems • Supports Microsoft Intune

About

DeepNet MobileID (OOBA)

This app transforms your iPhone into a security token for generating one-time passwords. It replaces physical keyfobs, offering a convenient and free solution for multi-factor authentication for business applications. It is OATH compliant and developed by authentication experts.

Highlights
  • Generates one-time passwords (OTP)
  • Converts iPhone into a security token
  • Replaces physical keyfobs
  • Supports multi-factor authentication
  • OATH compliant
Features
Read full description

MobileID is an app for generating one-time password (OTP). Install MobileID on your iPhone, you double your iPhone as a security token! Why carry a keyfob when you can just use your iPhone? MobielID is supported by Deepnet DualShield - a versatile multi-factor authentication platform that protects a wide range of business applications such as VPN, RDP, Web and Cloud. If you are currently carrying a dedicated security token, it is time to replace it with MobileID. It is free and it is open (OATH compliant). MobileID is developed by the strong authentication experts - Deepnet Security. For more information, please visit deepnetsecurity.com

Screenshots

Voltage Mail4 screens
DeepNet MobileID (OOBA)1 screens

Verdict

The call

The clearest difference is rating: DeepNet MobileID (OOBA) at 3.2 against Voltage Mail's 1.7. DeepNet MobileID (OOBA) also leads on monetization model (free vs freemium) and review sentiment (17% vs 8%). Voltage Mail's advantage is ratings volume (736 vs 13) and update cadence (every 2 months vs every 5 months). On price, ads, 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

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

DeepNet MobileID (OOBA) holds the better App Store score, 3.2 against 1.7. That said, the two scores are not equally well evidenced: Voltage Mail has 736 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 8% of Voltage Mail's written reviews are positive against 17% of DeepNet MobileID (OOBA)'s.

UpkeepUpdate frequency

Voltage Mail ships an update every 2 months, DeepNet MobileID (OOBA) every 5 months. The most recent releases landed on September 25, 2026 and September 16, 2026 respectively.

Scorecard6 real differences · 4 level
Voltage Mail versus DeepNet MobileID (OOBA): the parameters behind the verdict, then further details
ParameterVoltage MailDeepNet MobileID (OOBA)
PriceFreeFree
Rating1.7 (736 ratings)3.2 (13 ratings) — better
Positive reviews8.1% of reviews16.7% of reviews — better
Number of ratings736 — better13
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size24 MB19 MB
Age rating4+4+
DeveloperOpenTextDeepnet Security

Customer experience

Voltage Mail

All ratings736 ratings
Positive13.7%
Neutral6.0%
Negative80.3%
Written reviews149 reviews
Positive8.1%
Neutral1.3%
Negative90.6%

DeepNet MobileID (OOBA)

All ratings13 ratings
Positive53.8%
Neutral7.7%
Negative38.5%
Written reviews12 reviews
Positive16.7%
Neutral16.7%
Negative66.7%

Bugs and requests

Voltage Mail

Reported bugs

4 issues
  • Login screen freezes
  • Incompatible with older devices
  • Frequent crashes and errors
  • Unable to access or download messages

Requested features

4 requests
  • Add support for more mobile devices and operating systems
  • Improve user interface and streamline the message access process
  • Allow downloading and printing of attachments
  • Better integration with popular email clients

DeepNet MobileID (OOBA)

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Voltage Mail

No in-app purchases

None

DeepNet MobileID (OOBA)

No in-app purchases

Questions

Is Voltage Mail free?
Voltage Mail is free to download, with no in-app purchases.
Is DeepNet MobileID (OOBA) free?
DeepNet MobileID (OOBA) is free to download, with no in-app purchases.
Which has better reviews, Voltage Mail or DeepNet MobileID (OOBA)?
DeepNet MobileID (OOBA) is rated higher. Voltage Mail averages 1.7 out of 5 from 736 ratings, while DeepNet MobileID (OOBA) averages 3.2 from 13 ratings.
Do Voltage Mail or DeepNet MobileID (OOBA) have ads?
Neither Voltage Mail nor DeepNet MobileID (OOBA) shows ads.
Which is updated more often, Voltage Mail or DeepNet MobileID (OOBA)?
Voltage Mail ships an update every 2 months, and DeepNet MobileID (OOBA) every 5 months. Most recently, Voltage Mail was updated on September 25, 2026 and DeepNet MobileID (OOBA) on September 16, 2026.

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