Comparison

Keysight Pocket Guide vs VIAVI OSPREY

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

Head to head
About

Keysight Pocket Guide

Features
Read full description

Keysight is committed to supporting our Channel Partners and Customers in key application areas and the products within those applications. This App provids detailed information for specific Applications and Solutions areas comprised of seminar packages, marketing communications material, featured industry areas, and other useful literature. This App is functional without an active internet connection. Access to some material may require a Keysight-provided login and password. Installation and use of this application constitutes consent by the user to collect non-personally identifiable information for the sole purpose of obtaining anonymous information related to errors, bugs, and general navigation / usage of the application.

About

VIAVI OSPREY

This application simulates GPS signals for avionics testing, allowing users to create static waypoints and dynamic routes. It facilitates GPS receiver position lock through daily almanac data uploads and supports various GPS signal configurations.

Highlights
  • Static and dynamic route simulation
  • Automated almanac upload
  • Global avionics test set support
  • 10-channel configuration
  • Single or dual GPS antenna support
  • Direct GPS receiver connection
  • L1 GPS signal simulation
Features
Read full description

The VIAVI OSPREY GPS Simulator application provides the interface to create static waypoints and dynamic routes to be simulated for avionics testing purposes. Daily Almanac data can be seamlessly uploaded to the OSPREY, simplifying the process of ensuring a position lock for GPS Receivers. Features - Global Avionics Test Set Support - Fully Self-Contained - Static and Dynamic simulations - Automated Almanac upload process - 10-channel configuration - Single or dual GPS antenna configurations - Direct connection to GPS receiver - GPS signals simulated: L1 Benefits - Verification of system installations - Efficient ADS-B testing - Train technicians on new avionics installs - Train pilots on upgraded avionics prior to flight - Assist in testing XM Weather systems

Screenshots

Keysight Pocket Guide4 screens
VIAVI OSPREY4 screens

Verdict

The call

The clearest difference is ads: VIAVI OSPREY at none against Keysight Pocket Guide's shown. VIAVI OSPREY also leads on update cadence (every 2 months vs every 5 months). Keysight Pocket Guide's advantage is iOS requirement (13.0 vs 15.6). On price, 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.

UpkeepUpdate frequency

Keysight Pocket Guide ships an update every 5 months, VIAVI OSPREY every 2 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 6 level
Keysight Pocket Guide versus VIAVI OSPREY: the parameters behind the verdict, then further details
ParameterKeysight Pocket GuideVIAVI OSPREY
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size47 MB87 MB
Age rating17+4+
DeveloperKeysight Technologies, Inc.VIAVI Solutions Inc.

In-app purchases

None

Keysight Pocket Guide

No in-app purchases

None

VIAVI OSPREY

No in-app purchases

Questions

Is Keysight Pocket Guide free?
Keysight Pocket Guide is free to download, with no in-app purchases.
Is VIAVI OSPREY free?
VIAVI OSPREY is free to download, with no in-app purchases.
Do Keysight Pocket Guide or VIAVI OSPREY have ads?
Keysight Pocket Guide shows ads; VIAVI OSPREY does not.
Which is updated more often, Keysight Pocket Guide or VIAVI OSPREY?
Keysight Pocket Guide ships an update every 5 months, and VIAVI OSPREY every 2 months. Most recently, Keysight Pocket Guide was updated on November 2, 2026 and VIAVI OSPREY on November 5, 2026.

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