Education · head to head
Gaggle vs Star Walk 2
Gaggle
Education
Human-reviewed student safety monitoring across school email, documents and drive files
- From
- On request
- Rated
- -
Star Walk 2
Education
Freemium stargazing app with a low-cost ad-free upgrade, aimed at casual sky watchers
- From
- Free
- Rated
- -
The short version
- Only Star Walk 2 has a free tier, so it costs nothing to try first.
- Each has a real cost: Gaggle pricing is quoted per student per year with no published rate, and because it is charged on total enrolment rather than on accounts actually monitored, small districts pay a markedly higher effective rate than large ones.; Star Walk 2 its object catalogue is far smaller than SkySafari Pro, so it has little to offer once someone wants to go beyond naked-eye stargazing.
- They diverge on capability: Gaggle covers Content scanning, Star Walk 2 covers Augmented reality sky view.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Gaggle and Star Walk 2 actually diverge.
| Attribute | Gaggle | Star Walk 2 |
|---|---|---|
| Starting price | On request | Free |
| Pricing model | quote | Freemium, low-cost ad-free subscription upgrade |
| Free tier | No | Yes |
| Platforms | Web | iOS, Android, macOS, Windows |
Identical on both: user rating (Not yet rated), category (Education).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Gaggle
- Content scanning
- Trained human review
- Phone escalation
- SpeakUp for Safety
- Web filter safety integration
- Incident reporting
- Google and Microsoft coverage
- District-scoped contacts
Only in Star Walk 2
- Augmented reality sky view
- Time travel mode
- Satellite tracking
- Night mode
- Meteor shower and event alerts
- Ad-free Plus tier
What people use each for
The jobs each tool is most often brought in to do.
Gaggle
- A district whose board has adopted a suicide prevention policy that requires someone to act on a written disclosure within hours, at any time of yearnot Star Walk 2
- A district with no counselling capacity to triage automated alerts and that would otherwise ignore themnot Star Walk 2
- A district already running a web filter that produces safety signals nobody reads, wanting them routed to a staffed review servicenot Star Walk 2
- A district responding to a specific incident where a warning sign existed in a student document and nobody saw itnot Star Walk 2
Star Walk 2
- A parent wanting a cheap, simple app to show a child the night skynot Gaggle
- A traveller who wants to identify stars and planets without a big subscription commitmentnot Gaggle
- A casual stargazer who does not need telescope control or a deep-sky cataloguenot Gaggle
- Someone wanting satellite pass tracking including the ISS on a budgetnot Gaggle
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Gaggle
- Pricing is quoted per student per year with no published rate, and because it is charged on total enrolment rather than on accounts actually monitored, small districts pay a markedly higher effective rate than large ones.
- False positives are structural, not a tuning problem: fiction assignments, song lyrics, health coursework and jokes between friends all trigger review, and each escalation consumes counsellor time the district funds itself.
- The service reads children's private writing on school accounts, and civil liberties groups have documented cases where flagged content led to outing LGBTQ students or to discipline rather than support, which is a governance risk a board must accept explicitly.
- Coverage is limited to district-issued accounts, so a student using a personal phone, a personal email address or an encrypted messaging app is invisible, which is where much of the behaviour the district worries about actually happens.
- Escalation depends on the district maintaining accurate contact lists and staff who answer calls; when a named contact leaves and the list is stale, the service escalates into a void and the district only discovers it after an incident.
Star Walk 2
- Its object catalogue is far smaller than SkySafari Pro, so it has little to offer once someone wants to go beyond naked-eye stargazing.
- It has no telescope control, unlike SkySafari Plus and Pro, so it cannot drive a motorised mount.
- The free tier carries ads, which some users find intrusive during a stargazing session.
- It shares a visual style with many similar AR sky map apps, so its differentiation beyond price is limited.
- Content depth for deep-sky objects and satellite catalogues lags noticeably behind Sky Guide Pro and SkySafari Pro.
Pricing, plan by plan
Gaggle
On request- Gaggle Safety Management$undefined/year
- Machine plus human review of student email, documents and files
- Escalation to district contacts including out of hours
- SpeakUp for Safety tipline included
Star Walk 2
Free- Star Walk 2Free
- Core sky map and AR view
- Ad-supported
- Star Walk 2 Plus$5.99/year
- Ads removed
- Additional sky content
Which should you pick?
Choose Star Walk 2 if
- You need augmented reality sky view.
- You want to start without paying.
- You work on iOS, Android, macOS, Windows.
- You also want time travel mode.
Questions people ask
- Is Gaggle or Star Walk 2 better?
- Neither clearly leads. Gaggle starts at On request and Star Walk 2 at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Gaggle or Star Walk 2?
- Star Walk 2 has a free tier; the other does not. Paid plans start at On request for Gaggle and Free for Star Walk 2.
- Does Gaggle or Star Walk 2 run on more platforms?
- Gaggle runs on Web. Star Walk 2 runs on iOS, Android, macOS, Windows.
- Can I use Star Walk 2 for free?
- Yes. Star Walk 2 has a free tier, so you can try it without paying. Gaggle starts at On request.
- What is Gaggle best used for?
- Gaggle is most often used for a district whose board has adopted a suicide prevention policy that requires someone to act on a written disclosure within hours, at any time of year, a district with no counselling capacity to triage automated alerts and that would otherwise ignore them, a district already running a web filter that produces safety signals nobody reads, wanting them routed to a staffed review service, a district responding to a specific incident where a warning sign existed in a student document and nobody saw it. Of those, a district whose board has adopted a suicide prevention policy that requires someone to act on a written disclosure within hours, at any time of year and a district with no counselling capacity to triage automated alerts and that would otherwise ignore them are not what Star Walk 2 is typically brought in for.
- What can Gaggle do that Star Walk 2 cannot?
- Gaggle covers Content scanning, Trained human review, Phone escalation, SpeakUp for Safety. Star Walk 2 covers Augmented reality sky view, Time travel mode, Satellite tracking, Night mode.
Answered from the vendors’ own pages
Gaggle: How much does Gaggle cost?
It is quoted per student per year based on enrolment and requirements. No rate card is published, and effective rates fall substantially with district size.
Star Walk 2: Is Star Walk 2 free?
A free ad-supported version exists; Star Walk 2 Plus removes ads and adds content for a low annual or monthly fee.
Gaggle: Is the tipline an extra charge?
No longer. From 1 July, districts on the full Safety Management solution get SpeakUp for Safety and the web filter safety integration at no additional cost; each previously carried a per-student charge.
Star Walk 2: Does it support telescope control?
No. For telescope control, SkySafari Plus or Pro is the better choice.
Gaggle: Do humans read every alert?
Trained reviewers assess flagged items before escalation. That human layer is the core of the service, not an optional tier.
Star Walk 2: How does it compare to SkySafari on price?
It is substantially cheaper, but with a much smaller star and deep-sky object catalogue.
Gaggle: Does it monitor personal accounts or phones?
No. It covers district-issued Google or Microsoft accounts. Personal devices, personal accounts and encrypted apps are outside its reach.
Gaggle: What are the privacy obligations?
Districts sign a data processing agreement covering FERPA and applicable state student privacy law. Negotiate retention and scope in that document rather than relying on the marketing page.
Related pages
More on Star Walk 2
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