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Education · head to head

Anki vs Lightspeed Systems

Anki logo

Anki

Education

Free open source spaced repetition flashcard app, free everywhere except iOS where it is a paid one-time purchase

From
Free
Rated
-
Full reviewWebsite
Lightspeed Systems logo

Lightspeed Systems

Education

Filtering, classroom management and student safety monitoring for K-12 device fleets

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Anki has a free tier, so it costs nothing to try first.
  • Each has a real cost: Anki the interface is functional rather than polished, and new users often find the initial setup, deck creation and add-on ecosystem confusing compared with a guided app like Memrise.; Lightspeed Systems no module has published pricing, so districts cannot benchmark a quote without running a formal procurement, and the eventual figure depends heavily on which co-operative contract they buy through.
  • They diverge on capability: Anki covers Spaced repetition scheduling, Lightspeed Systems covers Filter.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Anki and Lightspeed Systems actually diverge.

Attributes where Anki and Lightspeed Systems differ
AttributeAnkiLightspeed Systems
Starting priceFreeOn request
Pricing modelOpen source, no licence fee except a paid iOS appquote
Free tierYesNo
PlatformsWindows, Mac, Linux, iOS, Android, WebWeb, iOS, Android, Chrome OS, Windows, macOS

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 Anki

  • Spaced repetition scheduling
  • Cross-platform sync
  • Shared deck library
  • Custom card types
  • Add-ons
  • Open file format

Only in Lightspeed Systems

  • Filter
  • Alert
  • Classroom
  • Insight
  • Signal
  • MDM
  • StopIt
  • Hall Monitor

What people use each for

The jobs each tool is most often brought in to do.

Anki

  • A medical student using a large shared deck to memorise anatomy or pharmacology facts on a fixed exam timelinenot Lightspeed Systems
  • A language learner building custom vocabulary decks with audio and images tailored to their own study materialnot Lightspeed Systems
  • A self-directed learner who wants full control over the scheduling algorithm and does not want a subscriptionnot Lightspeed Systems
  • An iPhone-only user deciding whether the one-time AnkiMobile price is worth it versus using the free web interface insteadnot Lightspeed Systems

Lightspeed Systems

  • A district with 15,000 take-home Chromebooks that needs filtering to follow the device onto home and public networksnot Anki
  • A technology director being asked to justify the edtech budget, who can use app usage data to cancel licences nobody opensnot Anki
  • A school board that has agreed to safety monitoring but has no staff able to respond to alerts at night, and so buys the human review servicenot Anki
  • A one-to-one iPad rollout wanting device enrolment, filtering and teacher screen control from one vendornot Anki

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Anki

  • The interface is functional rather than polished, and new users often find the initial setup, deck creation and add-on ecosystem confusing compared with a guided app like Memrise.
  • iOS users pay a one-time fee of around $24.99 to $29.99 for AnkiMobile while every other platform is free, which is an unusual asymmetry that surprises new users comparing app store prices before they understand it funds development.
  • Anki has no content of its own; a new user gets an empty deck and either has to build cards manually or trust the quality of a community-shared deck of unknown accuracy.
  • The default scheduling algorithm requires understanding concepts like ease factor and interval to tune effectively, and default settings are not optimal for every subject or workload.
  • Shared decks, especially large medical school decks, can carry factual errors or become outdated, and there is no editorial review process verifying their accuracy.

Lightspeed Systems

  • No module has published pricing, so districts cannot benchmark a quote without running a formal procurement, and the eventual figure depends heavily on which co-operative contract they buy through.
  • Alert detection and the 24/7 human review that makes it actionable are priced separately, so a district that budgets for Alert alone ends up owning the overnight triage burden itself.
  • The agent model means coverage stops at the managed device, and students moving to a personal phone on mobile data are outside filtering and monitoring entirely, which undercuts the compliance claim in the exact scenario administrators worry about.
  • Teacher screen monitoring is frequently deployed without training, and lessons stall while staff learn the interface, so the first term of a Classroom rollout often produces complaints rather than the intended benefit.
  • Buying eight modules from one vendor makes renewal a single high-value negotiation with no partial leverage, and districts locked into a multi-year co-operative contract cannot easily drop a module that underperforms.

Pricing, plan by plan

Anki

Free
  • AnkiFree
    • Desktop apps for Windows, Mac and Linux are free and open source
    • AnkiDroid on Android is free and open source, built by a separate volunteer team
    • AnkiMobile on iOS is a one-time purchase, commonly $24.99 to $29.99, funding development

Lightspeed Systems

On request
  • Lightspeed Filter$undefined/year
    • Device-level content filtering on and off network
    • YouTube and social media policy controls
    • Quoted per student device per year
  • Lightspeed Alert$undefined/year
    • Safety signal detection
    • 24/7 human review sold as an additional service
    • Quoted
  • Lightspeed Classroom, Insight, Signal, MDM, StopIt and Hall Monitor$undefined/year
    • Each sold as a separate per-student module
    • Quoted, commonly bundled

Which should you pick?

Choose Anki if

  • You need spaced repetition scheduling.
  • You want to start without paying.
  • You work on Windows, Mac, Linux, iOS, Android, Web.
  • You also want cross-platform sync.
Anki review

Choose Lightspeed Systems if

  • You need filter.
  • You work on Web, iOS, Android, Chrome OS, Windows, macOS.
  • You also want alert.
Lightspeed Systems review

Questions people ask

Is Anki or Lightspeed Systems better?
Neither clearly leads. Anki starts at Free and Lightspeed Systems at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Anki or Lightspeed Systems?
Anki has a free tier; the other does not. Paid plans start at Free for Anki and On request for Lightspeed Systems.
Does Anki or Lightspeed Systems run on more platforms?
Anki runs on Windows, Mac, Linux, iOS, Android, Web. Lightspeed Systems runs on Web, iOS, Android, Chrome OS, Windows, macOS.
Can I use Anki for free?
Yes. Anki has a free tier, so you can try it without paying. Lightspeed Systems starts at On request.
What is Anki best used for?
Anki is most often used for a medical student using a large shared deck to memorise anatomy or pharmacology facts on a fixed exam timeline, a language learner building custom vocabulary decks with audio and images tailored to their own study material, a self-directed learner who wants full control over the scheduling algorithm and does not want a subscription, an iphone-only user deciding whether the one-time ankimobile price is worth it versus using the free web interface instead. Of those, a medical student using a large shared deck to memorise anatomy or pharmacology facts on a fixed exam timeline and a language learner building custom vocabulary decks with audio and images tailored to their own study material are not what Lightspeed Systems is typically brought in for.
What can Anki do that Lightspeed Systems cannot?
Anki covers Spaced repetition scheduling, Cross-platform sync, Shared deck library, Custom card types. Lightspeed Systems covers Filter, Alert, Classroom, Insight.

Answered from the vendors’ own pages

Anki: Why is the iOS app not free when everything else is?

AnkiMobile is a paid one-time purchase, commonly around $24.99 to $29.99, that the developer states directly funds ongoing development of the free desktop apps, AnkiWeb sync and infrastructure used by every platform.

Lightspeed Systems: How much does Lightspeed Filter cost per student?

Lightspeed does not publish rates. Pricing is quoted per student device per year and varies with district size, module mix and which purchasing co-operative contract you buy through.

Anki: Is Anki really free on Android?

Yes. AnkiDroid, the Android app, is free and open source, built and maintained by a separate volunteer development team from the desktop project.

Lightspeed Systems: Is 24/7 human alert review included with Alert?

No. Alert provides the detection; the staffed round-the-clock review service is an additional purchase, and it is usually what districts actually need.

Anki: Do I need to pay for sync?

No. AnkiWeb, used to sync decks and review history across devices, is free.

Lightspeed Systems: Does filtering work when students are at home?

Yes, the agent runs on the device rather than the network, so policy follows the Chromebook or laptop off site.

Lightspeed Systems: What does Insight actually do for the budget?

It reports which licensed apps are opened and by whom, which districts use to cancel subscriptions with low usage. It also flags whether an app meets named privacy and accessibility standards.

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