Comparison

ISO to Go vs Vigenere Shift Plus

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

Head to head
About

ISO to Go

Understand the New England power grid with real-time data on electricity prices, system status, and fuel mix. Get customizable alerts for grid changes and their impact on wholesale prices.

Highlights
  • Wholesale electricity price data
  • Real-time power system status
  • Customizable notifications
  • Electricity demand data
  • Energy source breakdown
  • Geolocation pricing
Features
Read full description

This free application from ISO New England will help you better understand the regional power grid that serves Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. With detailed pricing data, power system status updates, and customizable notifications, you can follow how changing grid conditions affect wholesale electricity prices and the fuel mix used to keep your lights on. ISO to Go features: • Comprehensive day-ahead and real-time wholesale electricity price data for all locations across New England • A new-and-improved price map that works across all screen sizes • Geolocation feature to determine your local wholesale electricity price • Past, present, and future electricity demand data, and a new interactive real-time vs forecasted demand comparison chart • Stats on what energy sources are powering New England at any given moment, including a breakdown of renewable generation • Updates on power grid conditions, key in tighter summer and winter months • Plus customizable push notifications that alert you to changes in prices or grid operating conditions About ISO New England ISO New England is the independent, not-for-profit corporation responsible for overseeing the day-to-day reliable operation of New England’s power generation and transmission system, designing, administering, and monitoring the region’s competitive wholesale electricity markets, and managing comprehensive regional power system planning. The company’s workforce of power system engineers, economists, computer scientists, and other professionals fulfill these three critical responsibilities that together ensure New England has reliable, competitively priced electricity today and into the future. For more information about ISO New England, visit the company’s website at www.iso-ne.com.

About

Vigenere Shift Plus

Encrypt and decrypt text messages using the Vigenère cipher. This application provides a straightforward tool for applying this historical encryption method to your messages.

Highlights
  • Encrypt messages
  • Decrypt messages
  • Vigenère cipher implementation
  • Simple user interface
  • Text encryption tool
Features
Read full description

The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. With this simple App you can encrypt or decrypt messages with the Vigenère Cipher.

Screenshots

ISO to Go4 screens
Vigenere Shift Plus1 screens

Verdict

The call

The clearest difference is price: ISO to Go at Free against Vigenere Shift Plus's $0.99. ISO to Go also leads on rating (4.3 vs 3.3) and ratings volume (16 vs 3). Vigenere Shift Plus's advantage is iOS requirement (13.0 vs 15.0). On update cadence, 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

ISO to Go is free to download; Vigenere Shift Plus costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ISO to Go holds the better App Store score, 4.3 against 3.3. That said, the two scores are not equally well evidenced: ISO to Go has 16 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

ISO to Go ships an update every 2 months, Vigenere Shift Plus every 3 months. The most recent releases landed on September 16, 2026 and September 8, 2026 respectively.

Scorecard5 real differences · 5 level
ISO to Go versus Vigenere Shift Plus: the parameters behind the verdict, then further details
ParameterISO to GoVigenere Shift Plus
PriceFree — better$0.99
Rating4.3 (16 ratings) — better3.3 (3 ratings)
Positive reviews55.6% of reviews—
Number of ratings16 — better3
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.013.0 — better
Further details — not scored
Size27 MB6 MB
Age rating4+4+
DeveloperISO New England Inc.a Rausa

Customer experience

ISO to Go

All ratings15 ratings
Positive80.0%
Neutral6.7%
Negative13.3%
Written reviews9 reviews
Positive55.6%
Neutral22.2%
Negative22.2%

Vigenere Shift Plus

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

ISO to Go

No in-app purchases

None

Vigenere Shift Plus

No in-app purchases

Questions

Is ISO to Go free?
ISO to Go is free to download, with no in-app purchases.
Is Vigenere Shift Plus free?
Vigenere Shift Plus costs $0.99, with no in-app purchases.
Which has better reviews, ISO to Go or Vigenere Shift Plus?
ISO to Go is rated higher. ISO to Go averages 4.3 out of 5 from 16 ratings, while Vigenere Shift Plus averages 3.3 from 3 ratings.
Do ISO to Go or Vigenere Shift Plus have ads?
Neither ISO to Go nor Vigenere Shift Plus shows ads.
Which is updated more often, ISO to Go or Vigenere Shift Plus?
ISO to Go ships an update every 2 months, and Vigenere Shift Plus every 3 months. Most recently, ISO to Go was updated on September 16, 2026 and Vigenere Shift Plus on September 8, 2026.

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