Between US$ 0 and about US$ 49 a month, depending on what you need to see. Google Family Link is free and limits time, apps and location. Qustodio costs US$ 59.95 a year (5 devices) or US$ 104.95 (unlimited). Bark, US$ 14 a month or US$ 99 a year, is sold only in the United States, Australia and South Africa. mSpy charges US$ 48.99 for the first month per device, or US$ 11.67 a month if you pay for twelve. CatWatchful, this site’s app, costs US$ 29 for one month and one device, US$ 49 for two months and two devices with WhatsApp, or US$ 99 for a year and three devices. The price difference is almost always one thing: whether the app shows the content of conversations or only limits usage. Prices in US dollars, verified on October 12, 2026.
The question “how much does parental control cost” has two honest answers. If what you want is for your child not to spend six hours on TikTok or install what they should not, it costs zero: Google gives it away with Family Link and Samsung with Samsung Kids. If what you need is to know who they talk to and what people write to them, it costs between five and fifty dollars a month, and there the price differences are not arbitrary: they charge per device or per family, per month or per year, renew at the same price or at double, and include or exclude WhatsApp content. This guide puts the prices of the five most searched options in Latin America and Spain side by side, in US dollars and with the date they were verified, and explains what each step buys. CatWatchful is this site’s app; it is in the table by the same standard as the others, and where it loses the comparison we say so.
Google Family Link costs nothing and has no paid version: it is installed on your child’s Android with a supervised account and gives you a daily time limit, a bedtime, approval of every app they download, content filters in Play and the phone’s location. Samsung adds Samsung Kids on Galaxy phones and Xiaomi documents Family Link as its official route, so on any Android the zero-dollar step exists and works. What no free tool does is show content: not WhatsApp messages, not SMS, not who they talk to on the phone, not what they see on Instagram. Qustodio has a free plan, but it covers a single device and the basic features. If your question is “what does my child do with the phone”, the free answer is enough; if it is “who do they talk to”, it is not, and that is where paying starts.
Google Family Link: free. Usage time, approved apps, filters and location. No content. Qustodio Basic: US$ 59.95 a year (about US$ 5 a month), up to 5 devices. Qustodio Complete: US$ 104.95 a year (about US$ 8.75 a month), unlimited devices. Call log and SMS on Android and social-media alerts; it does not show WhatsApp. Bark: US$ 14 a month or US$ 99 a year, unlimited children and devices. It alerts you when it detects something in messages and in more than thirty apps; it does not show full conversations. Sold only in the United States, Australia and South Africa. mSpy: US$ 48.99 for one month, US$ 28 a month if you buy three, US$ 11.67 a month if you buy twelve (US$ 140 a year). One device per subscription. Those are first-purchase prices: on renewal its own page warns it charges the full price, US$ 69.99, US$ 40 and US$ 16.67 a month. CatWatchful (this site): Medium, US$ 29 for one month and one device, without WhatsApp. Gold, US$ 49 for two months and two devices, with WhatsApp, screenshots and keylogger. Platinum, US$ 99 for twelve months and three devices (US$ 8.25 a month), with all 26 features. Three-day trial with no card and renewal at the same price. Android only. All five prices come from each product’s official page on October 12, 2026 and are linked at the end; they change often and it is worth checking again before you pay.
Four things explain almost all of the difference. The first is what it shows: limiting usage is cheap or free; reading the content of conversations is what costs, because it requires an app installed on the minor’s phone that captures messages as they arrive. The second is how it charges: Qustodio and Bark charge per family, with several devices; mSpy and CatWatchful charge per device, so with two children the price doubles unless the plan already includes two or three, as Gold and Platinum do. The third is the period: the big monthly price you see is usually the annual plan’s; a single month costs two to four times more. And the fourth is renewal: some plans renew at the same price and others charge the first time with a discount and then the full price; mSpy states it on its own page, and it is the most common trap when comparing. There is a fifth that is not about price but about the map: Bark is not sold outside the United States, Australia and South Africa, so for a family in Mexico, Argentina, Colombia or Spain it is not an option, however well it does in American reviews.
If the question is specifically the content of chats, the free tier disappears and three options remain with different prices for the same thing. Qustodio Complete shows the call log and SMS on Android and alerts you to social activity, but it does not open WhatsApp. mSpy does show WhatsApp and messages, for US$ 48.99 the first month on one device. CatWatchful shows SMS, notifications, Instagram and Facebook from US$ 29 a month, and WhatsApp with chats and audio in Gold, US$ 49 for two months and two devices: about US$ 24.50 a month per device if you use both. For a year, Platinum, US$ 99 for three devices, is the lowest price per device and month in this table among the apps that show content. Two clarifications so the price does not mislead. In CatWatchful, messages, calls and location reach the panel as periodic reports, with the time of the last one, and are kept for three months; it is not a live screen. And none of these apps is legal on an adult’s phone without their consent: the price buys the tool, not the permission, and the permission comes from your country’s law according to your child’s age.
With zero budget, Family Link on any Android, and Samsung Kids if it is a small child’s Galaxy. If you want finer limits and alerts, but not to read conversations, Qustodio Basic at US$ 5 a month is the cheapest paid option for up to five devices. If you need to see who your child talks to and what people write to them on a single phone, CatWatchful Medium at US$ 29 or Gold at US$ 49 for two months; if it is two or three children and you will use it all year, Platinum at US$ 99 costs less per month than any monthly plan on this list. mSpy also offers an iPhone version, at a higher price and with renewal at double. The rule worth more than any price: buy the month, not the year, until you have checked that the app works on your child’s specific phone and that your child knows it is installed. CatWatchful’s three-day trial exists for that.
Not among the official tools. Family Link, Samsung Kids and Qustodio’s free plan regulate time, apps and location, not the content of chats. The ones that show WhatsApp are paid: in CatWatchful it is in the Gold plan, US$ 49 for two months and two devices. If an app promises to do it without charging, it is worth asking how it makes its money.
See plans and pricingUS$ 29 for one month and one device in the Medium plan, which does not include WhatsApp; US$ 49 for two months and two devices in Gold, with WhatsApp, screenshots and keylogger; and US$ 99 for twelve months and three devices in Platinum, which works out to US$ 8.25 a month. There is a three-day trial with no card and renewal is at the same price.
See plans and pricingIt depends on the term and on how many phones. A single month: CatWatchful Medium US$ 29 versus mSpy US$ 48.99. A year: mSpy US$ 140 for one device (US$ 11.67 a month, and US$ 16.67 on renewal) versus CatWatchful Platinum US$ 99 for three devices. mSpy has an iPhone version; CatWatchful is Android only.
Qustodio does, with prices in US dollars and the app in Spanish. Bark does not: its own pricing page sells it only in the United States, Australia and South Africa. If you live in Mexico, Argentina, Colombia or Spain and read a review recommending Bark, rule it out by geography before price.
Because some apps sell the first purchase at a discount and renew at the full price. mSpy states it on its page: US$ 48.99 the first month and US$ 69.99 on renewal. When comparing, look at the renewal price and the period, not the big number. CatWatchful renews at the same price it publishes; Qustodio and Bark publish annual prices with no first-purchase discount announced.
This guide is general information about parental control tools, not medical or psychological advice, and it was not reviewed by a health or parenting professional. The features, plans and prices of the apps mentioned change often and vary by country and phone model: the pricing data corresponds to the review date and should be checked on each maker’s official page before paying. CatWatchful is this site’s product and has no commercial relationship with the other tools compared.
Related guides: Alternatives to Google Family Link · Can I read my child's WhatsApp messages legally? · Parental controls on Android · Is it legal to monitor my child? · Phone rules by age